VEHICLE INSPECTION OPERATIONS &TRAINING MANUAL FOR OFFICIAL VEHICLE
INSPECTION STATIONS(VEHICLE SAFETY INSPECTION)

This manual presented by:
DPS
Representative
StreetCity
Phone

VI-87 (02/2024)

CHAPTER SELECTION
CHAPTER 1 STATION CERTIFICATION..........................................................................................3
CHAPTER 2 INSPECTOR CERTIFICATION ....................................................................................14
CHAPTER 3 STATION OPERATION ..................................................................................................18
CHAPTER 4 INSPECTION PROCEDURES ........................................................................................21
CHAPTER 6 COMMERCIAL MOTOR VEHICLE ............................................................................73

CHAPTER ONE
STATION CERTIFICATIONCHAPTER CONTENTPROCEDURE FOR APPOINTMENT AS AN OFFICIAL VEHICLE INSPECTION STATION ...... 01.05.00
CLASSES OF OFFICIAL VEHICLE INSPECTION STATIONS ...................................................... 01.10.00
STATION ENDORSEMENTS ........................................................................................................... 01.15.00
RESPONSIBILITY OF INSPECTION STATION OWNER OR OPERATOR.................................. 01.20.00
MINIMUM REQUIREMENTS FOR OFFICIAL VEHICLE INSPECTION STATION ................... 01.25.00
Space Requirements ...................................................................................................................... 25.01
Equipment Requirements .............................................................................................................. 25.02
Brake Test Area Specifications ...................................................................................................... 25.03
Inspection Station Display Area .................................................................................................... 25.04
Inspection Area.............................................................................................................................. 25.05
Official Vehicle Inspection Station Sign........................................................................................ 25.06
CHANGE OF NAME, LOCATION, OR OWNERSHIP .................................................................... 01.30.00
GOING OUT OF BUSINESS ............................................................................................................. 01.35.00
INSPECTION STATION CANCELLATIONS AND SUSPENSIONS.............................................. 01.40.00
REINSTATEMENT AFTER SUSPENSION ..................................................................................... 01.45.00
LEASE OR SALE OF INSPECTION STATION DURING SUSPENSION ...................................... 01.50.00
CRIMINAL VIOLATIONS ................................................................................................................ 01.55.00

CHAPTER ONE
STATION CERTIFICATION

1.5.1

PROCEDURE FOR APPOINTMENT AS AN OFFICIAL VEHICLE INSPECTION STATION

Those desiring to make application for an Official Vehicle Inspection Station should notify Regulatory Services Division(RSD) personnel at a field office, any Department of Public Safety Regional Office, or the DPS Headquarters Office inAustin.
RSD personnel with all necessary forms will call the place of business of the applicant for a personal inspection of thepremises, personnel, and equipment to determine the ability of the applicant to conduct inspections in accordance with theprovisions of the Transportation Code, Chapter 548. If the application is approved, the applicant will be notified, and uponreceipt of the statutory fee, which shall constitute the certificate fee until August 31 of the odd-numbered year following thedate of appointment as an Official Vehicle Inspection Station, a Certificate of Appointment will be issued to the applicant.
Thereafter, appointments will be made for two-year periods, and the statutory renewal fee will apply. An application fee is
non-refundable. The Department has transitioned to accepting applications for appointment as a Vehicle Inspection
Station via the Internet. The application fee will be required to be paid at the time of the submission of the on-line
application and is non-refundable.
The applicant shall be informed of the required equipment, including the approved testing devices, tools, measuring devices,
customer waiting area, display area, brake machines, marked brake test area, and the approved inspection test area. The
applicant shall be advised not to purchase any testing equipment until notified by the Department representative that allminimum requirements are in compliance with Department rules and regulations.
An applicant for an Official Vehicle Inspection Station must meet the space, equipment, and manpower requirements asprescribed for the class of vehicle inspection station applied for, and must have a certified inspector in his employ. All
appointments are provisional, and are conditioned on the proper conduct of vehicle inspections and compliance with
Department rules and regulations. Inspections by appointment only are not permitted. The Department shall require anapplicant for appointment as an Official Vehicle Inspection Station to furnish evidence of sound business practices. Financial
instability can be a cause for disapproval.
Application forms necessary for certification as an Official Vehicle Inspection Station must be properly completed, signed,
and submitted with all required fees to the Department. Incomplete applications will be withdrawn after 60 days if additional
information required by the Department is not furnished. If the application is approved, on initial investigation, the applicant
will be advised to proceed with the installation of testing equipment. After such installation, the Department will inspect theequipment for approval. The Department will conduct an investigation of each applicant to determine full compliance withthe rules and regulations, which may include a background check of the owner or operators. Every person licensed to operate
an Official Vehicle Inspection Station shall be of good reputation, character, and moral conduct.
In accordance with the Texas Transportation Code, the Department of Public Safety may disqualify any application forcertification or revoke or suspend an outstanding certificate of any inspection station or the certificate to inspect vehicles ofany person who has been convicted of: (1) a felony or Class A or B misdemeanor; (2) a similar crime under the jurisdictionof another state or the federal government that is punishable to the same extent as a felony or Class A or Class B
misdemeanor; or (3) a crime under the jurisdiction of another state or the federal government that would be a felony or Class
A or Class B misdemeanor if the crime were committed in this state.
1.

A conviction for a felony or a Class A or Class B misdemeanor will be cause for disqualification, suspension, or
revocation under this subsection. For purposes of this section, a person is convicted of an offense when an
adjudication of guilt or an order of deferred adjudication for the offense is entered against the person by a court ofcompetent jurisdiction.

2.

The certification of an inspection station will be subject to disqualification, revocation, or suspension in the eventthe owner or inspector is convicted of such an offense. In the event that an inspector or inspector applicant isconvicted of such an offense, that person’s certification will be subject to revocation, suspension, or his application
will be subject to disqualification.

The Department has determined a certified inspection station and certified inspector is in a position of trust, performing aservice to members of the public where the Transportation Code, Chapter 548, requires the public to report for a vehicle
inspection. Therefore, the Department has determined the following crimes relate directly to the duties and responsibilities ofa certified vehicle inspection station or inspector and/or those for whom this section is applicable.
Those crimes include:
1.

Arson, Criminal Mischief, and Other Property Damage or Destruction (Texas Penal Code, Chapter 28).

2.

Robbery (Texas Penal Code, Chapter 29).

3.

Burglary and Criminal Trespass (Texas Penal Code, Chapter 30).

4.

Theft (Texas Penal Code, Chapter 31).

5.

Fraud (Texas Penal Code, Chapter 32).

6.

Bribery and Corrupt Influence (Texas Penal Code, Chapter 36).

7.

Perjury and Other Falsification (Texas Penal Code, Chapter 37).

8.

Criminal Homicide (Texas Penal Code, Chapter 19).

9.

Driving Related Intoxication Offenses (Texas Penal Code, Chapter 49).

10. Texas Code of Criminal Procedures, Article 42.12 (3g) or 62.001 (Sexually Violent Offense).
11. Texas Occupations Code, Section 53.021 (a) (2)-(4).
A felony conviction for the above offenses is disqualifying for 10 years from the date of conviction, unless the offense wascommitted in one’s capacity as a vehicle inspection station owner or inspector, or was facilitated by licensure as an owner or
inspector, in which case it is permanently disqualifying. A conviction under number 10 above is permanently disqualifying.
A felony conviction for an offense not listed above is disqualifying from 5 years from the date of conviction.
A Class A Misdemeanor conviction for the offenses listed above is disqualifying for 5 years from the date of conviction.
A Class B Misdemeanor conviction for the offenses listed above is disqualifying for 2 years from the date of conviction.
A person who is disqualified as above may appeal that disqualification in accordance with 37 TAC 23.5 (h).
As an authorized owner or operator of an Official Vehicle Inspection Station, you are responsible to the Department for theproper operation of the Official Vehicle Inspection Station. An owner or operator will recognize and acknowledge their
responsibility to the public to offer a good, complete and thorough inspection, according to the rules and regulations.
Based upon the application and results of investigations made, each applicant will be approved or disqualified forappointment. Each applicant approved will be issued a Certificate of Appointment. Such Certificate of Appointment shallbe for the place of business set forth in the application. The Certificate of Appointment shall not be assignable and shall bevalid only for the owner or owners in whose name or names they are issued and for transaction of business only at the placedesignated thereon.
No business will be approved as an Official Vehicle Inspection Station until all certification requirements have been met.
The inspection area must be designated and approved by the supervising Department representative. Businesses meeting all
qualifications will be required to complete an application and furnish the appointment fee. The applicant will be notified of
appointment as an Official Vehicle Inspection Station and a Certificate of Appointment will be issued to the applicant after
the necessary forms have been completed and approved.
A Certificate of Appointment will not be issued for the operation of an Official Vehicle Inspection Station until an
investigation has been made by the Department to assure that it has the proper facilities, required equipment, and is properly
qualified or has properly qualified personnel to accomplish satisfactory inspections. Companies and governmental agencies
who have their own garages and repair facilities may apply for an Official Vehicle Inspection Station Certificate ofAppointment provided such facilities, equipment, and personnel meet the requirements set forth in these rules andregulations.
The application shall be submitted by the owner, if a natural person, and in the case where the owner is a corporation, copartnership or association, by two executive officers thereof or some other person(s) specifically authorized by said
corporation to sign the application to which shall be attached written evidence of their authority. Proof of ownership may berequired of the applicant.
When all certification requirements have been met the supervising Department representative will explain the use of all
supplies and forms necessary for the operation as an Official Vehicle Inspection Station. In accepting your appointment as
an Official Vehicle Inspection Station, you accept the responsibility to properly inspect all vehicles submitted forinspection and to serve the citizens efficiently. This will be the standard used by the Department in supervising yourconduct as an Official Vehicle Inspection Station. Any Official Vehicle Inspection Station which fails to maintain thisstandard in dealing with the public cannot be allowed to continue as an Official Vehicle Inspection Station. The procedures
outlined herein should be carefully studied and frequently reviewed by your entire organization. If the inspection programis to be effective, you must be thoroughly familiar with and follow all of the provisions as outlined. If your appointment issubsequently withdrawn, it is because you and your employees have failed to follow the instructions contained in the
Vehicle Inspection Operations and Training Manual.
Instructions for the renewal process will be provided well in advance of August 31 of the odd-numbered year when thestation’s Certificate of Appointment is due to expire.
1.10.1

CLASSES OF OFFICIAL VEHICLE INSPECTION STATIONS

The classes of Official Vehicle Inspection Stations authorized in Texas are as follows:1.

Public Station: Is a station open to the public performing inspections on vehicles presented by the public.

2.

Fleet Station: A station not providing vehicle inspection services to the public.

3.

Government Station: A station operated by a political subdivision, or agency of this state.

1.15.1STATION ENDORSEMENTS

The following six (6) endorsements will be used in conjunction with the three (3) classes of Official Inspection Stations tofurther identify the types of inspections to be performed by each Official Inspection Station.
1. Endorsement: 1Y - may inspect any vehicle requiring a one-year inspection.
2. Endorsement: 2Y - may inspect any vehicle requiring a two-year inspection.
3. Endorsement: CW - may inspect any vehicle requiring a commercial inspection.
4. Endorsement: CT - may inspect any vehicle requiring a commercial trailer inspection.
5. Endorsement: TL - may inspect any vehicle requiring a trailer inspection.
6. Endorsement: MC - may inspect any vehicle requiring a motorcycle inspection.
1.20.1 RESPONSIBILITY OF VEHICLE INSPECTION STATION OWNER, OPERATOR OR VEHICLE
INSPECTOR
Upon being appointed as an Official Vehicle Inspection Station, you as the inspection station owner, operator, or vehicle
inspector will be deemed to have accepted the following obligations and responsibilities:
1. To act as directed by the Texas Department of Public Safety in inspecting vehicles in accordance with the Vehicle
Inspection Operations and Training Manual.
2. To inspect only those vehicles authorized by the class of inspection station and specific endorsements.
3. To make the Vehicle Inspection Operations and Training Manual available to all certified inspectors.
4. To properly instruct all employees in accordance with this manual.
5. Use only employees certified by the Department of Public Safety to do the actual inspecting in accordance with therequirements.

6. That the owner/operator will notify the Department representative supervising the station when a certified
inspector leaves employment.
7. Ensure that all inspectors will conduct honest, thorough, and efficient safety inspections as promptly as possible,
in accordance with the Transportation Code and the Department’s regulations.
8. Maintain in good working order all required tools and equipment prescribed in the minimum requirements and tocease operations immediately when this condition is not met.
9. Maintain a clean and orderly place of business, shop, and inspection area. (Owner is responsible for employees inthis respect.)
10. Keep the required inspection records available at the Official Vehicle Inspection Station.
11. Records are to be kept on forms and in the manner prescribed by the Department and shall be available for
examination during approved business hours by any authorized agent of the Texas Department of Public Safety.
12. Records shall be kept for at least one year from the date recorded.
13. Records may be removed from premises by any Department representative for investigation or evidence and shallbe returned without undue delay.
14. Refrain from the use of alcohol.
15. Refrain from the use of drugs in any degree except when prescribed by a licensed physician, providing that
normal faculties shall not be impaired.
16. Have a reputation for sound business practices, high moral character, and obedience to law and order.
17. Each Official Vehicle Inspection Station must have a minimum of one certified inspector on duty to perform
inspections promptly during the inspection hours of the inspection station. Adequate supervision of employees
certified to make inspections should be provided during this time. It is recommended that every inspection station
have more than one certified inspector available to ensure prompt inspection service to the public at all times.
Vacations and days off should be anticipated by management.
18. The hours of operation when inspections are performed are required to be posted at all public stations in a manner
clearly visible to the public.
19. Have a display area located in the customer waiting area and of sufficient size as approved by the Department.
Only official notices, licenses, letters from the Department, procedure charts, or other documents authorized by
the Department may be exhibited in the display area. The designated customer waiting area must be protectedfrom the elements.
20. Shall be solely responsible for maintaining all supplies issued by the Department in reasonably good condition
21. Shall notify the Department representative supervising the station of any change of location, name or ownership,or

when going out of business. Upon the effective date of any such change in location, name or ownership, allinspection privileges will cease.

22. Shall make inspections only at the business location designated on the Certificate of Appointment.
23. Shall record all vehicle inspections through an approved method or device at the time the inspection is conducted.
24. Shall upon termination of the Certificate of Appointment, for any reason, immediately turn over all inspection
materials issued by the Department to the supervising Department representative.
25. It is your responsibility to determine that every vehicle submitted for inspection is properly and thoroughly
inspected by a certified inspector and that the operation of your inspection station is in accordance with theserules and regulations. You have the duty to place vehicular safety foremost as this is the primary intent of the
Texas Vehicle Inspection Program.

Method of Payment:a.

Payment for the purchase of safety automation fees, original application for or renewal of all certifications,replacement of any Department issued property, and/or any other fees required are due and payable at thetime of order and or billing. The Department has transitioned to accepting applications forappointment as a Vehicle Inspection Station via the Internet. The application fee will be required tobe paid at the time of the submission of the on-line application and is non-refundable.

b.

Should the online payment be denied the application will remain valid for 60 days. If online payment is notreceived within the 60 days, the application will be withdrawn and payment and application must be
resubmitted.

c.

Failure to comply with any of the above-listed responsibilities may result in revocation of the Certificate ofAppointment.

01.25.00 MINIMUM REQUIREMENTS FOR OFFICIAL VEHICLE INSPECTION STATIONSApproval of inspection station applications cannot be granted, nor appointment allowed to continue, unless full compliancewith the following requirements is met and maintained.
25.1 Space
1.

General Requirementsa.

The building must be a sound structure, in good repair, to qualify as an official Vehicle Inspection Station.
The building must be a permanent type building with at least two permanent walls and a permanent roof.
The inspection area must be located entirely within or adjacent to the building and in an area approved by
the Department. Temporary expedients such as tents, arbors, or sheds are not acceptable.

b. Every inspection station shall have an inspection area within the station, set aside and approved for
conducting the inspection of vehicles. When an inspection station desires to have more than one inspection
area, the space requirements for each lane must be met.
c.

At least one approved inspection area containing all the required equipment is to be available during
inspection hours.

d. The inspection area is defined as the designated space approved for inspection purposes. Approval cannot
be granted, nor permitted to continue, unless full compliance of the minimum inspection station
requirements is maintained.
e.

The inspection lane area shall be sufficiently lighted to afford good visibility for performing all inspection
procedures.

f.

The entire floor of the approved inspection area of the building shall be hard surfaced such as asphalt or
concrete.

g.

Lifts, pits, and runners are permissible if all other requirements are met.

h. The inspection area must be free of any obstructions that will interfere with inspections. Work benches,storage cabinets, or tools may be allowed if sufficient space to conduct inspection is not affected. The door
or building opening must be of sufficient size to accommodate the normal size of vehicle the station isendorsed to inspect.
i.

An approved inspection area will be maintained at all times during inspection periods so that vehicles may beinspected without unreasonable delay.

j.

Have a display area located in the customer waiting area of sufficient size as approved by the Department.

k.

Have a designated customer waiting area protected from the elements.

l.

Have a secured area for storage of records and necessary supplies.

2.

Specific Requirementsa.

Public, Fleet, and Government Classes of Inspection Stationsi) The inspection area shall include: an area of 12 feet wide by 24 feet long of minimum
space. The inspection area must be in an area approved by the Department.
ii)

Floors: The entire floor must be hard surfaced, such as asphalt or concrete.

iii) Government inspection stations shall meet all of the requirements as prescribed for a public
inspection station.
iv) Fleet inspection stations shall meet all the requirements as prescribed for a public inspection
station. Fleet inspection stations may only inspect vehicles owned by the company or under bona fidelease to the company or vehicles that are covered under a current service contract with the company.
v) Fleet and government inspection stations are not permitted to inspect the personal vehicles ofofficers, employees, or the general public. This applies even though personal vehicles may be used
part- or full- time for business.
vi) Inspection stations will not be approved where free access to the inspection station grounds is notgranted to representatives of the Department.
vii) Firms open to the public will not be issued a fleet inspection station Certificate of Appointment
except in instances where such firms are currently certified as a public inspection station and desire a
fleet inspection station Certificate of Appointment.
b.

Trailer Endorsement Inspection Stationsi) The building must be of a permanent type suitable for display area, tools, and storage for records
and necessary supplies.
ii) Inspection area may be of any hard surfacing material such as asphalt or concrete.

c.

Motorcycle Endorsement Inspection Stationsi) The inspection area shall include: an area of 8 feet wide by 10 feet long of minimum space.
ii) Floors: The entire floor of the approved inspection area of the building must be hard surfaced,such as asphalt or concrete.

25.2 Equipment
1.

General Requirements for All Classes of Inspection Stationsa.

The minimum amount of tools, equipment, approved testing devices, and a current Operations andTraining Manual must be available online at all times at the inspection station.

b.

All required testing equipment used at an inspection station must have been approved for such use by the
Department. The inspection station owner or operator shall have the responsibility for the use, accuracy,and general maintenance of all equipment. All testing equipment shall be installed and used in accordancewith the Department’s recommendation. To ensure proper functioning, equipment shall be checked andcalibrated frequently and shall be properly maintained. Inspections may not be conducted when any
required testing device is malfunctioning until the device has been repaired and subsequently approved
for use by the Department. Equipment shall be arranged and located at or near the approved inspection
area to obtain maximum efficiency.

c.

Every certified inspector shall have a working knowledge of all testing devices used in the performance ofan inspection in their inspection station. It is also necessary that the certified inspector know the procedure
for setting, calibrating, and otherwise causing such equipment to be accurate and effective, according to
the Department’s recommendations.

d.

Each Official Vehicle Inspection Station is required to own and maintain the minimum amount ofequipment, as listed below.
i) Tools and facilities for making tests, repairs, and adjustments ordinarily encountered on those types ofvehicles to be inspected.
ii) A brake test area which has been approved by the supervising Department representative, measured
and marked as follows: 0, 25’, 30’, 40’, and 50’ OR an approved brake testing device.
iii) A measuring device(s) clearly indicating a 12-inch measurement, a 15-inch measurement, a 20-inch
measurement, a 24-inch measurement, a 54-inch measurement, a 60-inch measurement, a 72-inch
measurement, and an 80-inch measurement to measure height, width of lighting, and other safety
equipment except the 80-inch measurement is not required of motorcycle only vehicle inspection
stations.
iv) A gauge for measuring tire tread depth calibrated in 32nds of an inch and designed with a metal probe.
v)

A measuring device for checking brake pedal reserve clearance except motorcycle only
inspection stations.

vi) A Department-approved device for measuring the light transmission of sun screening devices. Thisequipment requirement may not apply to government, fleet, or other types of inspection stations as
determined by the Department.
vii) A Department-approved device for checking gas caps. The Department requires vehicle inspection
stations to obtain updated adapters as they become available from the manufacturer. A vehicle
inspection station may not inspect a vehicle for which it does not have an approved adapter for thatvehicle. This equipment requirement may not apply to government, fleet, or other types of inspection
stations as determined by the Department.
viii) An approved and operational electronic station interface device and a telephone line, or internet
connection for the electronic station interface device.
e.

25.3

All Official Vehicle Inspection Stations equipped with approved testing devices, (decelerometers and brakemachines) which manufacturers have discontinued may use them as long as they are in proper working
order, capable of testing, and as long as they can continue to get service and repairs for them. When they
are no longer serviceable, they must be replaced.

Brake Test Area Specifications

Every vehicle inspection station must have a designated brake test area where road tests are conducted unless a brake testingmachine is used for brake tests. Any number of inspection stations may use the same area in a given town if authorized by
the Department representative.
All road tests for braking efficiency shall be made only at a measured, marked, and approved brake test area. The area shallbe substantially level (not to exceed plus or minus 1% grade), smooth, hard surfaced, and free of loose material, oil, or
grease. The area must be designated by painted lines, stakes or other devices noting where the brakes are to be applied; 25
feet forward from this beginning designation, there should be another marker; 5 feet further from the second marker (at 30
feet) there should be a third marker; 10 feet further from the third marker (at 40 feet) there should be a fourth marker. Those
inspection stations that inspect large truck-trailer combinations will be required to have an additional line or marker, 50 feet.
It is the responsibility of the inspection station owner or operator to secure an acceptable area and maintain the painted lines,
stakes, or other devices indicating the brake test area. In some instances, all of the above-mentioned lines or markers will not
be necessary. You should consult the Department representative supervising your inspection station as to the number
required.
The brake test area and location must be marked and maintained by the inspection station.
The area and location must be approved by the Department representative supervising the station. Any change in the location
or additions to the brake test area must be approved by the supervising Department representative.

25.04 Inspection Station Display Area

1.

Certified Official Vehicle Inspection Stations are required to display in the customer waiting area a certificate of
appointment, procedure chart, and other notices in a manner prescribed by the department.

2.

Have a display area located in the customer waiting area of sufficient size as approved by the Department.

25.05 Inspection Area

25.6

1.

The inspection area is the designated space approved for inspection purposes and located entirely within the Official
Vehicle Inspection Station structure.

2.

Trailers, semitrailers, mobile homes, motor homes and vehicles which are too large for the standardized inspection
bays need to be inspected within the inspection building. However these types of vehicles must be inspected near
the inspection building in a space approved by the supervising Department representative.

3.

Official Vehicle Inspection Stations must be kept clean and all vehicles must remain in the approved inspection
area during the entire inspection, except for road testing purposes.

4.

A modification of building which changes length or width to less than required will be cause for cancellation of thestation’s Certificate of Appointment.

5.

Inspection stations shall be ready to conduct inspection during approved inspection hours at any time during theyear. This means that the floor area used for inspection must be kept clean and clear of obstructions, and allnecessary equipment in place and ready to use.

6.

All required testing equipment will be grouped and displayed at the approved inspection area at all times unless in use.

7.

Each official vehicle inspection station shall display in the customer waiting area, the Certificate of Appointment,
procedure chart, posters, or other informational material as directed by the Department.

8.

The inspection lane shall be free from mechanical repair work for the purpose of vehicle inspection. No major repair
shall be performed in this rea during approved work hours when inspections are to be performed. Minor repair jobs
performed in this lane must be of such a nature that the vehicle undergoing such repair can be easily moved out of
the area for the purpose of inspection of another vehicle.

9.

Official Vehicle Inspection Stations shall not refuse to inspect any vehicle, for which an endorsement is held, that ispresented for inspection, if the vehicle is of the type authorized to be inspected at an Official Vehicle Inspection
Station, provided the necessary tools and equipment needed to compete that inspection are available.

10.

When refusing to inspect for a justified cause, it is a good practice to know and refer the customer to anotherconvenient station that is qualified to serve the customer.

Vehicle Inspection Station Signage
1.

In order to meet the minimum requirements for vehicle inspection stations in Texas, every Official Vehicle
Inspection Station, except fleet and government inspection stations, is required to display, at all times during theofficial life of the station, the Official Vehicle Inspection Station sign.

2.

The sign and replacements are provided by the state at no cost to the station and shall always remain the property of
the Department and serve as a means of identification of the Official Vehicle Inspection Station.

3.

Only one official sign will be displayed at any public inspection station, but dissimilar signs may be displayed. The
supervising Department representative will issue only one sign per public inspection station license issued.

4.

Signs will be displayed from the inspection station building facing the street, preferably in the open to provide
maximum visibility along with hours of operation.

5.

The sign shall be surrendered upon demand of the Department.

01.30.00 CHANGES AND UPDATES TO VEHICLE INSPECTION STATION INFORMATION
A vehicle inspection station certificate holder must notify the Department of a business name change in a manner prescribedby the Department within 30 days of such change.
Upon the effective date of any such change of location, name, or ownership, all of your inspection privileges will cease under
the former name or address, and you will not be allowed to inspect vehicles under the new name or location or as a newowner until you are certified by the Department.
The Certificate of Appointment fee for any such change in location, or ownership will be the same as for a new inspection
station application.
Failure to comply with the requirement of this section may result in criminal prosecution, as well as necessary civil recover yaction and may impede any reappointment of the vehicle inspection station.
01.35.00 GOING OUT OF BUSINESS
Whenever any Official Vehicle Inspection Station goes out of business, the owner or operator shall notify the Department
representative supervising the station of this intent and immediately return all forms, and sign furnished by the Department,
and any other official materials relating to inspections to the Department. A final accounting of all forms and other items
shall be conducted immediately upon termination of business.
Failure to comply with the requirement of this section may result in criminal prosecution, as well as necessary civil recover yaction and may impede any reappointment of the vehicle inspection station.
01.40.00 INSPECTION STATION CANCELLATIONS AND SUSPENSIONS
Discontinuance of business for any reason, changes of location, name, or ownership automatically cancels your inspection
station authorization to inspect.
Any inspection station whose Certificate of Appointment is suspended or revoked shall return all supplies to the Department
and no such inspection station shall inspect vehicles while its Certificate of Appointment is suspended or revoked. All
inspection supplies furnished by the Department are to be surrendered to the Department in the event an inspection station
terminates its business or upon the suspension or revocation of the Certificate of Appointment.
Failure to comply with the requirement of this section may result in criminal prosecution, as well as necessary civil recovery
action and may impede any reappointment of the vehicle inspection station.
01.45.00 REINSTATEMENT AFTER SUSPENSION
After expiration of suspension in which the Certificate of Appointment has expired, a vehicle inspection station owner
desiring reinstatement may request reinstatement by contacting a Department representative. The station must meet
minimum requirements for class of station. A properly completed application in a manner prescribed by the department,along with the statutory Certificate of Appointment fee will be submitted.
After expiration of suspension of which the Certificate of Appointment has not expired a vehicle inspection station owner
desiring to reinstate may request reinstatement by contacting a Department representative. The station must meet theminimum requirements for their class of station. No Certificate of Appointment fee is required.
No person may apply for certification as a vehicle inspection station after disqualification or revocation by the Director of the
Department of Public Safety until such time as the applicant complies with all requirements for certification.
1.50.1LEASE OR SALE OF INSPECTION STATION DURING SUSPENSION

A change of ownership or lease to another person during a suspension period will require the new owner or lessee tocomplete an application for certification. All procedures for a new application including all forms and an investigation will
be required.
The lease of the building and/or inspection bay will in addition require:1.

A copy of the lease agreement submitted with the application for appointment as an Official Inspection Station.

2.

A suspended, revoked, or denied owner/operator may not supervise the inspection of any vehicle nor otherwise

participate in the inspection of any vehicle.
3.

4.

1.55.1

Certification may not be issued to an immediate family member if the immediate family member’s certification ispending or revoked unless the person submits an affidavit stating the certificate holder who is the subject ofsuspension, revocation or pending action, has no, nor will have any, further involvement in the business of Stateinspections.
A station’s Certificate of Appointment will be subject to revocation in the event the Department discovers theprevious certificate holder is involved in the inspection business at that location.

CRIMINAL VIOLATIONS

All bona fide complaints received by the Department about any inspection station shall be investigated for the purpose ofdetermining whether there has been a violation of the Transportation Code or the applicable rules and regulations.
Appropriate action will be taken when it appears from any investigation that the Transportation Code or any regulation
included herein has been violated by an inspection station or its agents or employees.
Any owner of an Official Vehicle Inspection Station, agent, servant, or employee who violates any provision of theTransportation Code, the rules and regulations, or requires the repair of any equipment other than that equipment required to
be inspected, upon conviction, may be subject to a penalty.
The Transportation Code states that it is a violation of the law or administrative rules to commit any of the following acts:
1.

Issuing a Vehicle Inspection Report with knowledge that the issuance is in violation of this chapter or rules adopted
under this chapter.

2.

Falsely or fraudulently representing to the owner or operator of a vehicle that equipment inspected or required to beinspected must be repaired, adjusted, or replaced for the vehicle to pass an inspection.

3.

Misrepresenting:4.

a.

material information in an application in violation of Transportation Code, Section 548.402 or 548.403; orb.

information filed with the department under this chapter or as required by department rule;

Issuing a Vehicle Inspection Report:a.

without authorization to issue the Vehicle Inspection Report; orb.

without inspecting the vehicle;

5.

Issuing a Vehicle Inspection Report for a vehicle with knowledge that the vehicle has not been repaired, adjusted, or
corrected after an inspection has shown a repair, adjustment, or correction to be necessary;

6.

Knowingly issuing a Vehicle Inspection Report:a.

for a vehicle without conducting an inspection of each item required to be inspected; orb.

for a vehicle that is missing an item required to be inspected or that has an item required to be inspectedthat is not in compliance with state law or department rules;

7.

Refusing to allow a vehicle’s owner to have a qualified person of the owner’s choice make a required repair,adjustment or correction;

8.

No additional fee may be charged above the required inspection fee with the exception of any approved repairs.

9.

Performing an act prohibited by or fails to perform an act required by this chapter or a rule adopted under thischapter.

Unless otherwise prescribed by law, the offense is a Class C misdemeanor. A designated representative of the department
may issue a notice of an offense or a notice to appear to a person, including an inspector or inspection station, who violates
this chapter or a rule adopted under this chapter.

CHAPTER TWO
INSPECTOR CERTIFICATIONCHAPTER CONTENTCERTIFICATION PROCEDURES .................................................................................................... 02.05.00
CHANGES AND UPDATES TO VEHICLE INSPECTOR EMPLOYMENT, ADDRESS, OR
NAME ................................................................................................................................................. 02.10.00

CHAPTER TWO
INSPECTOR CERTIFICATION
2.5.1

CERTIFICATION PROCEDURES

Those desiring to make application to become a Certified Vehicle Inspector should notify Regulatory Services Division(RSD) personnel at a field office, any Department of Public Safety Regional Office, or the Headquarters Office in Austin.
The certification of persons to inspect vehicles shall be in accordance with the rules and regulations promulgated by the
Department.
In accordance with the Texas Transportation Code, the Department of Public Safety may disqualify any application forcertification or revoke or suspend the certificate to inspect vehicles of any person who has been convicted of: (1) afelony or Class A or B misdemeanor; (2) a similar crime under the jurisdiction of another state or the federal
government that is punishable to the same extent as a felony or Class A or Class B misdemeanor; or (3) a crime under thejurisdiction of another state or the federal government that would be a felony or Class A or Class B misdemeanor if thecrime were committed in this state.
The Department has determined a certified vehicle inspector is in a position of trust, performing a service tomembers of the public where the Transportation Code, Chapter 548, requires the public to report for vehicle inspection.
Therefore, the Department has determined the following crimes relate directly to the duties and responsibilities of acertified vehicle inspection inspector and/or those for whom this section is applicable. Those crimes include:
1.

Arson, Criminal Mischief, and Other Property Damage or Destruction (Texas Penal Code, Chapter 28).

2.

Robbery (Texas Penal Code, Chapter 29).

3.

Burglary and Criminal Trespass (Texas Penal Code, Chapter 30).

4.

Theft (Texas Penal Code, Chapter 31).

5.

Fraud (Texas Penal Code, Chapter 32).

6.

Bribery and Corrupt Influence (Texas Penal Code, Chapter 36).

7.

Perjury and Other Falsification (Texas Penal Code, Chapter 37).

8.

Criminal Homicide (Texas Penal Code, Chapter 19).

9.

Driving Related Intoxication Offenses (Texas Penal Code, Chapter 49).

10. Texas Code of Criminal Procedures, Article 42.12 (3g) or 62.001 (Sexually Violent Offense).
11. Texas Occupations Code, Section 53.021 (a) (2)-(4).
A felony conviction for the above offenses is disqualifying for 10 years from the date of conviction, unless the offense
was committed in one’s capacity as a vehicle inspection station owner or inspector, or was facilitated by licensure as anowner or inspector, in which case it is permanently disqualifying. A conviction under number 10 above is permanently
disqualifying.
A felony conviction for an offense not listed above is disqualifying from 5 years from the date of conviction.
A Class A Misdemeanor conviction for the offenses listed above is disqualifying for 5 years from the date of conviction.
A Class B Misdemeanor conviction for the offenses listed above is disqualifying for 2 years from the date of conviction.
For purposes of this section, a person is convicted of an offense when an adjudication of guilt or an order of deferredadjudication for the offense is entered against the person by a court of competent jurisdiction.
A person who is disqualified as above may appeal that disqualification in accordance with 37 TAC 23.5 (h).

Application forms necessary for certification as a Certified Vehicle Inspector must be properly completed, signed, andsubmitted with all required fees to the Department. Incomplete applications will be withdrawn after 60 days if additional
information required by the Department is not furnished. The Department will conduct an investigation of each applicant
to determine full compliance with the rules and regulations, which may include a background check of the inspector
applicant. Every person licensed to inspect at an Official Vehicle Inspection Station shall be of good reputation, character,and moral conduct.
A Certified Vehicle Inspector will recognize and acknowledge their responsibility to the public to offer a good, complete andthorough inspection, according to the rules and regulations.
Based upon the application and results of investigations made, each applicant will be approved or disqualified forappointment.
Vehicle inspector applicants must meet the following:1.

A vehicle inspector must be 18 years of age.

2.

Hold a valid driver license to operate a motor vehicle in Texas.

3.

Not currently suspended or revoked in the Texas Vehicle Inspection Program.

4.

Complete Department approved training.

5.

Pass with a grade of not less than 80 on an examination pertinent to the Vehicle Inspection Program.

6.

Successfully demonstrate ability to correctly operate the required testing devices.

7.

Meet all other eligibility criteria.

8.

Pay the statutory fee at the time of application. The Department has transitioned to accepting applications
for appointment as a Certified Vehicle Inspector via the Internet. The application fee will be required tobe paid at the time of the submission of the on-line application.

The applicant for a vehicle inspector certification will be given an opportunity to pass the written exam up to 3 times
within 30 days from the date of training. Failure to pass the exam within 30 days from the date of training will terminate theapplication process. The applicant must then reapply, attend the training course again, and will again have 3 tries tosuccessfully pass the written examination within the 30 day time limit.
Each certified vehicle inspector must possess one or more of the following vehicle inspection endorsements:
1.

S. May inspect any vehicle requiring a safety only vehicle inspection.

2.

C. May inspect any vehicle requiring a commercial vehicle inspection.

3. E. May inspect any vehicle requiring an emission vehicle inspection.
The Department representative may, when the vehicle inspector performance warrants, require the certified vehicle
inspector to take all or part of the written and/or demonstration test at any time, or may require attendance at any vehicle
inspection training program. Failure to pass a required test may result in suspension of the vehicle inspector’s certification.
Instructions for the renewal process will be provided well in advance of August 31 of the even- numbered year when theinspector’s certification is due to expire. Once a completed application for renewal of a vehicle inspector certification isreceived by the Department, the applicant may be required to receive training and take a test prior to recertification.

2.10.1

CHANGES AND UPDATES TO VEHICLE INSPECTOR EMPLOYMENT, ADDRESS, OR
NAME.

a)

If a certified vehicle inspector changes their place of employment, the inspector must prove their ability to correctly
operate the testing equipment at such new vehicle inspection station.
If a certified vehicle inspector changes their place of residence, the inspector must notify the department of
their new permanent street address within 30 days of the date of the change.

b)

c)

If a certified vehicle inspector changes their name, the inspector must notify the department of their new namewithin 30 days of the date of the change.

CHAPTER THREESTATION OPERATIONCHAPTER CONTENTINSPECTION REFUSALS ................................................................................................................. 03.05.00
ELECTRONIC VEHICLE INSPECTION STATION INTERFACE DEVICE ACCESS................... 03.10.00
VEHICLE INSPECTION REPORTS ................................................................................................. 03.15.00
METHOD OF PAYMENT ................................................................................................................. 03.20.00
VEHICLE INSPECTION FEES ......................................................................................................... 03.25.00
RETENTION OF RECORDS ............................................................................................................. 03.30.00
VEHICLE INSPECTION STATION RECORD AUDITS ................................................................. 03.35.00

3.5.1INSPECTION REFUSALSa.

No Official Vehicle Inspection Station during posted business hours shall refuse to inspect a vehicle that ispresented for inspection without an objective justifiable cause related to safety. Official Vehicle Inspection Stations
will be required to inspect only those types of vehicles authorized by the endorsement(s) to their Certificate ofAppointment.

b.

A vehicle inspection station must refuse to inspect any motor vehicle for which no evidence of financial
responsibility is presented. Any vehicle which is too large for the inspection station entrance must be inspected
near the inspection building in a space approved by the Department representative.

c.

A vehicle inspection station must refuse to inspect any motor vehicle equipped with a Compressed Natural Gas(CNG) tank(s) that have an expired label or no letter of documentation.

3.10.1

ELECTRONIC VEHICLE INSPECTION STATION INTERFACEa.

All vehicle inspections performed must be reported using an approved method or device at the time the inspection isconducted. Access to the system at certified vehicle inspection stations must be controlled using procedures,processes, and protocols as established by the Department.

b.

The records maintained in the database are governmental records. Fraudulent use of the database may subject theperson to criminal prosecution, as well as administrative action.

c.

Vehicle inspectors and all other authorized users will be held accountable for the security and confidentiality of all
assigned access processes including, but not limited to, passwords, protocols, or access/identification cards.

d.

Before each official vehicle inspection begins, the inspector must use a unique identifier protocol as established by
the Department which links the inspection record with the certified vehicle inspector performing the inspection. The
inspector of record entering his unique identifier will be responsible for the inspection of all required items ofinspection, entering all information into the electronic station interface device at the time of inspection, andcompleting other documents as required.

e.

Vehicle inspectors may not give, share, lend, or divulge this unique identifier protocol, including but not limited to:passwords, personal identification numbers (PIN), or access/identification cards to another person. Failure tocomply with this section may result in suspension or revocation of the vehicle inspector'sCertification, as well as any appropriate criminal action or administrative disciplinary action.

f.

The Department may require certified vehicle inspectors to acknowledge the Department's policy for use andprotection of access procedures.

g.

If the electronic station interface or printer is not operational, no inspections may be performed.

h.

The vehicle inspection data must be reported using the electronic station interface prior to the performance of any
additional inspections.

3.15.1

VEHICLE INSPECTION REPORTS

a.

Vehicles that do not meet the inspection requirements must be issued a failed Vehicle Inspection Report.

b.

If an inspector makes a mistake on a Vehicle Inspection Report, the vehicle shall be inspected again and a new
Vehicle Inspection Report issued at no charge.

c.

A passenger car or light truck that qualifies for a two-year inspection is one that is: sold in this state; has not beenpreviously registered in this or another state; and on the date of sale is of the current or preceding year model. A“passenger car” means a motor vehicle, other than a motorcycle, used to transport persons and designed toaccommodate 10 or fewer passengers. A motor home not registered as a commercial vehicle is considered to be apassenger car.

A “light truck” means a truck, including a pickup truck, panel delivery truck, or carryall truck, that has amanufacturer’s rated carrying capacity (MRCC) of 2000 pounds or less. Generally, the National Highway Traffic
Safety Administration (NHTSA) considers the manufacturer’s rated carrying capacity (payload/load carrying
capacity) to be the Gross Vehicle Weight Rating minus the Empty Weight of the vehicle. A vehicle inspection
station should carefully review the MRCC of any vehicle with a GVWR of 7,000pounds or more to ensure thatthe vehicle is eligible for a two-year inspection. Vehicle specification details, including the MRCC, are readily
available from the vehicle manufacturer.

3.20.1METHOD OF PAYMENT

a.

Payment for the purchase of safety automation fees, original application for or renewal of all certifications,replacement of any Department issued property, and/or any other fee required by Texas Transportation Code,
Chapter 548 or this chapter, are due and payable at the time of order and/or billing. The Department has
transitioned to accepting applications for appointment as a Vehicle Inspection Station or Certified Vehicle
Inspector via the Internet. The application fee will be required to be paid at the time of the submission of theon-line application.

b.

Should the online payment be denied, the application will remain valid for 60 days. If online payment is not received
within the 60 days, the application will be withdrawn and payment and application must be resubmitted.

c.

If payment is dishonored prior to issuance of the certification, the application will be abandoned as "incomplete”.
The department may dismiss a pending revocation proceeding upon receipt of payment of the full amount due
including any additional fees.

3.25.1

VEHICLE INSPECTION FEESa.

The vehicle inspection fee is a charge for performing the inspection only, and may not exceed the amount set by
Texas Transportation Code, Chapter 548 or this chapter.

b.

The vehicle inspection station may collect the inspection fee at the time of the original inspection whether thevehicle is passed or rejected. Every inspection shall be completed before a vehicle is passed or rejected.

c.

Charges for additional services related to the repair, replacement or adjustment of the required items of inspection
must be expressly authorized or approved by the customer and must be separately listed on the bill from thestatutorily mandated inspection fee.

d.

A vehicle inspection station or vehicle inspector may not advertise, charge, or attempt to charge a fee in a mannerthat could reasonably be expected to cause confusion or misunderstanding on the part of an owner or operator
presenting a vehicle regarding the relationship between the statutorily mandated inspection fee and a fee for any
other service or product offered by the vehicle inspection station

3.30.1RETENTION OF RECORDSa.

Records must be kept in a secured area within the vehicle inspection station.

b.

Records must be filed in a manner to ensure ready availability.

c.

The vehicle inspection station is not required to maintain duplicate paper records of electronically reported
inspections or transactions.

3.35.00

VEHICLE INSPECTION STATION RECORD AUDITS

Vehicle inspection stations must grant access to the Department representative for the purpose of auditing records
pertaining to the Department's Vehicle Inspection Program. Records must be made available to the Department's
representative at the station premises.

CHAPTER FOUR
INSPECTION PROCEDURES
CHAPTER CONTENTINSPECTION ITEMS FOR VEHICLE CLASSES .............................................................................. 4.5.1
Passenger Car ........................................................................................................................................ 5.2
Pickup, Panel, or Truck under 80 inches wide ........................................................................................ 5.3
Truck 80 inches or more, overall width .................................................................................................. 5.4
Truck-Tractor (Safety Only) .................................................................................................................. 5.5
Bus (except School Bus), Motor Home .................................................................................................. 5.6
Trailers, Semitrailers, Pole Trailers, or Mobile Homes Exceeding 7,500 pounds gross weight........................... 5.7
AutoCycle ............................................................................................................................................. 5.8
Motorcycle and Motor-Driven Cycle ..................................................................................................... 5.9
Moped ................................................................................................................................................. 5.10
School Bus .......................................................................................................................................... 5.11
PRIOR TO INSPECTION ...................................................................................................................... 4.10.00
INSPECTION REQUIREMENTS ....................................................................................................... 4.15.1
Vehicles Exempt from Inspection............................................................................................................ 15.2
General Inspection Requirements ............................................................................................................ 15.3
Foreign Vehicles .................................................................................................................................. 15.4
All-Terrain Vehicles .............................................................................................................................. 15.5
Unique Vehicles (Reconstructed/Rebuilt Vehicles, Engine Swaps, Kit Cars, Miniature Motorcycles,
Neighborhood Electric Vehicles, Low Speed Vehicles) ............................................................................. 15.6
Multi-Purpose Vehicles .......................................................................................................................... 15.7
Compressed Natural Gas (CNG) ............................................................................................................. 15.8
Unsafe Vehicles ................................................................................................................................... 15.9
Special Lighting Devices and Reflector Requirements ............................................................................. 15.10
Commercial Motor Vehicle Inspection Program ..................................................................................... 15.11
INSPECTION ITEM CRITERIA ......................................................................................................... 4.20.1
Compressed Natural Gas (CNG) ....................................................................................................... 20.2
Beam Indicator .................................................................................................................................. 20.3
Brakes – General Information............................................................................................................ 20.4
Service Brake Test Methods .............................................................................................................. 20.5
Brake Test Procedures ....................................................................................................................... 20.6
Platform-Type Brake Tester .............................................................................................................. 20.7
Roller-Type Brake Tester .................................................................................................................. 20.8

Decelerometer-Type Brake Tester....................................................................................................... 20.9
Autocycle, Motorcycle, Motor – Driven Cycle, and Moped Brake Requirements .......................................20.10
Service Brake Inspection/Rejection Criteria ...................................................................................... 20.11
Electric Brake Systems...................................................................................................................... 20.12
Parking Brake.................................................................................................................................... 20.13
Vacuum Brake System ...................................................................................................................... 20.14
Air Brake System .............................................................................................................................. 20.15
Clearance Lamps............................................................................................................................... 20.16
Exhaust Emission System ................................................................................................................. 20.17
Exhaust System ................................................................................................................................. 20.18
Headlamps ........................................................................................................................................ 20.19
Horn .................................................................................................................................................. 20.20
License Plate Lamp ........................................................................................................................... 20.21
Mirrors .............................................................................................................................................. 20.22
Reflectors (Rear) ............................................................................................................................... 20.23
Reflectors (Side) ............................................................................................................................... 20.24
Safety Guards or Flaps....................................................................................................................... 20.25
Seat Belts .......................................................................................................................................... 20.26
Side Marker Lamps ........................................................................................................................... 20.27
Steering ............................................................................................................................................. 20.28
Stop Lamps ....................................................................................................................................... 20.29
Tail Lamps ........................................................................................................................................ 20.30
Tires .................................................................................................................................................. 20.31
Turn Signal Lamps ............................................................................................................................ 20.32
Vehicle Identification Number, Motor or Serial Number ................................................................... 20.33
Wheel Assembly ............................................................................................................................... 20.34
Window Tinting ................................................................................................................................ 20.35
Windshield Wipers............................................................................................................................ 20.36
Rejected Vehicles.............................................................................................................................. 20.37
Repairs .............................................................................................................................................. 20.38
RECOMMENDED INSPECTION PROCEDURE................................................................................... 04.25.0
ANNEX ............................................................................................................................................... 04.30.0
Insurance..................................................................................................................................... Annex 1
Brakes ......................................................................................................................................... Annex 2
Buses and Trailer Lighting Requirements ......................................................................................... Annex 3
Conspicuity Requirements ............................................................................................................ Annex 4
Examples of Defective Equipment ...................................................................................................Annex 5

4.5.1INSPECTION ITEMS FOR VEHICLE CLASSES

4.5.2

INSPECT EVERY PASSENGER CAR AND MOTOR HOME UNDER 80 INCHESWIDE FOR:*Check for evidence of Financial Responsibility/CNG tank expiration (if equipped) and/or documentation.
1.

Horn

2.

Windshield Wipers

3.

Mirror4.

Steering

5.

Seat Belts

6.

Brakes (system) (Parking – beginning with 1960 models)

7.

Tires

8.

Wheel Assembly

9.

Exhaust System

10. Exhaust Emissions System (beginning with 1968 models)
11. Beam Indicator (beginning with 1948 models)
12. Tail Lamps (2); (1) if 1959 or earlier
13. Stop Lamps (3); including the Center High Mount Stop Lamp (1986 and newer passenger cars); (2) if 1960
thru 1985; (1) if 1959 model or earlier.
14. License Plate Lamp (1)15. Rear Red Reflectors (2)16. Turn Signal Lamps (beginning with 1960 models)17. Head Lamps (2)18. Motor, Serial, or Vehicle Identification Number
19. Inspect for applied window tinting or coating
20. Gas Caps on gasoline powered vehicles 2 thru 24 years old
21. License Plates (2)4.5.3

INSPECT EVERY PICKUP, PANEL, OR TRUCK UNDER 80 INCHES WIDE FOR:* Check for evidence of Financial Responsibility/CNG tan expiration (if equipped) and/or documentation.
1.

Horn

2.

Windshield Wipers

3.

Mirror4.

Steering

5.

Seat Belts

6.

Brakes (system) parking – (beginning with 1960 models)

7.

Tires

8.

Wheel Assembly

9.

Safety Guards of Flaps (if four tires or at least two super single tires on the rearmost axle)

10. Exhaust System
11. Exhaust Emissions System (beginning with 1968 models)
12. Beam Indicator (beginning with 1948 models)
13. Tail Lamps (2); (1) if 1959 model or earlier Stop Lamps (3); including the Center High Mount Stop Lamp
(1994 and newer); (2) if 1960 thru 1993; (1) if 1959 model or earlier
14. License Plate Lamp (1)15. Rear Red Reflectors (2)16. Turn Signal Lamps (beginning with 1960)
17. Head Lamps (2)18. Motor, Serial, or Vehicle Identification Number
19. Inspect for applied window tinting or coating
20. Gas caps on gasoline powered vehicles 2 thru 24 model years old
21. License Plates (2)4.5.4INSPECT EVERY TRUCK 80 INCHES OR MORE IN OVERALL WIDTH FOR:

1.

Horn

2.

Windshield Wipers

3.

Mirror4.

Steering

5.
6.

Seat Belts
Brake system (Parking – beginning with 1960 models)

7.

Tires

8.

Wheel Assembly

9.

Safety Guards or Flaps (if four tires or at least two super single tires on the rearmost axle)

10. Exhaust System

11. Exhaust Emissions System (beginning with 1968 models)
12. Beam Indicator (beginning with 1948 models)
13. Tail Lamps (2); (1) if 1959 model or earlier
14. Stop Lamps (2); (1) if 1959 model or earlier
15. License Plate Lamp (1)16. Rear Red Reflectors (2)17. Turn Signal Lamps
18. Clearance Lamps
19. Side marker Lamps
20. Side Reflectors
21. Head Lamps (2)22. Motor, Serial or Vehicle Identification Number
23. Inspect for applied window tinting or coating
24. Gas caps on gasoline powered vehicle 2 through 24 years old
25. License Plates (2)Overall width is determined by measuring from the widest part on one side to the widest part on the other side of thevehicle. In some vehicles this may be the dual wheels which would be considered as part of the width. Do not include
an outside mirror or mirrors in determining overall width.

4.5.5

INSPECT EVERY TRUCK- TRACTOR FOR:*Check for evidence of Financial Responsibility/CNG tank expiration (if equipped) and/or documentation.
1.

Horn

2.

Windshield Wipers

3.

Mirror4.

Steering

5.

Seat Belts

6.

Brakes (system) Parking – (beginning with 1960 models)

7.

Tires

8.

Wheel Assembly

9.

Exhaust System

10. Exhaust Emissions System (beginning with 1968 models)
11. Beam Indicator (beginning with 1948 models)12. Tail Lamps (2); (1) if 1959 model or earlier
13. Stop Lamps (2); (1) if 1959 model or earlier
14. Rear Red Reflectors (2)15. Turn Signal Lamps
16. Clearance Lamps (2)17. Head Lamps (2)18. Motor, Serial or Vehicle Identification Number
19. Inspect for applied window tinting or coating
20. Gas caps on gasoline powered vehicles 2 thru 24 model years old
21. License Plate Lamp (required if the truck- tractor has a rear license plate)
22. License Plates (2)Definition of a Truck-Tractor. Every motor vehicle designed and used primarily for drawing other vehicles and not soconstructed as to carry a load other than a part of the weight of the vehicle and load so drawn.

4.5.6

INSPECT EVERY BUS (EXCEPT SCHOOL BUS), OR MOTOR HOME OVER 80
INCHES WIDE FOR:*Check for evidence of Financial Responsibility/CNG tank expiration (if equipped) and/or documentation.
1.

Horn

2.

Windshield Wipers

3.

Mirror4.

Steering

5.

Seat Belt

6.

Brakes (system) Parking – (beginning with 1960 models)

7.

Tires

8.

Wheel Assembly

9.

Exhaust System

10. Exhaust Emissions System (beginning with 1968 models)
11. Beam Indicator (beginning with 1948 models)
12. Tail Lamps (2)13. Stop Lamps (2)14. License Plate Lamp (1)15. Rear Red Reflectors (2)16. Turn Signal Lamps
17. Clearance Lamps
18. Side Marker Lamps
19. Side Reflectors
20. Head Lamps (2)21. Motor, Serial, or Vehicle Identification Number
22. Inspect for applied window tinting
23. Gas caps on gasoline powered vehicles 2 thru 24 model years old
24. License Plates (2)4.5.7

INSPECT ALL TRAILERS, SEMITRAILERS, POLE TRAILERS, OR MOBILEHOMES EXCEEDING 7,500 POUNDS ACTUAL GROSS WEIGHT ORREGISTERED WEIGHT (SEE DESCRIPTION BELOW) FOR:*Check for evidence of Financial Responsibility on towing vehicle.

1.

Brakes (system) (If gross weight exceeds 7,500 pounds)

2.

Tires

3.

Wheel Assembly

4.

Safety Guards or Flaps (if four tires or at least two super single tires on the rearmost axle)

5.

Tail Lamps (2)6.

Stop Lamps (2)7.

License Plate Lamp

8.

Rear Red Reflectors (2)9. Turn Signal Lamps
10. Clearance Lamps
11. Side Marker Lamps
12. Side Reflectors
13. Side Marker Lamps
14. Motor, Serial or Vehicle Identification Number
15. License Plates (2)NOTE: On House moving Dollies and Converter Dollies, the items of inspection are:a.

Brakes (on converter dollies only).

b.

Tires

c.

Wheel Assemblyd.

Coupling Devices (on convertor dollies).

e.

Reflector, rear, red (2), one on each side.

f.

Tail Lamps, rear, red (2), one on each side.

g.

Stop Lamps, rear red (2), one on each side.

Gross Weight means the weight of the trailer plus the weight of the load. Registered weight is the amount ofgross weight the vehicle is licensed to carry. If a trailer has an empty weight of 3,000 lbs. and is being used tocarry 4,501 lbs. of weight, the trailer’s gross weight would be 7,501 lbs., thus requiring a vehicle inspection
report (excluding a travel trailer).
4.5.8

INSPECT EVERY AUTO CYCLE FOR:*Check for evidence of Financial Responsibility.

1. Horn
2. Mirror
3. Steering
4. Brakes (system)
5. Tires
6. Wheel Assembly
7. Exhaust System
8. Tail Lamps (1)9. Stop Lamp (1)10. License Plate Lamp
11. Rear Red Reflector (1)12. Head Lamp
13. Motor, Serial or Vehicle Identification Number
14. Steering Wheel
15. License Plates (2)Definitions:“Autocycle” means a motor vehicle other than a tractor that is:(1) Designed to have when propelled not more than three wheels on the ground;(2) Equipped with a steering wheel(3) Equipped with seating that does not require the operator to straddle or sit astride the seat; and(4) Manufactured and certified to comply with federal safety requirements for a motorcycle.
4.5.9

INSPECT EVERY MOTORCYCLE AND MOTOR-DRIVEN CYCLE FOR:*Check for evidence of Financial Responsibility.

1. Horn
2. Mirror
3. Steering
4. Brakes (system)
5. Tires
6. Wheel Assembly
7. Exhaust System
8. Tail lamps (1)9. Stop Lamp (1)10. License Plate Lamp
11. Rear Red Reflector (1)12. Head Lamp (1)13. Motor, Serial or Vehicle Identification Number
14. License Plates (2)Definitions:
Motorcycle: Every motor vehicle having a saddle for the use of the rider and designed to propel itself with not morethan three wheels in contact with the ground but excluding a tractor.
Motor-Driven Cycle: Every Motorcycle with a motor which has an engine piston displacement of not more than
250cc.

4.5.10

INSPECT EVERY MOPED FOR:*Check for evidence of Financial Responsibility

1. Brake
2. Head Lamp
3. Rear Reflector
4. Rear Lamp
5. License Plates (2)Definition of a Moped:
Moped means a motor-driven cycle whose speed attainable is one mile is not more than 30 mph and that produces not
more than two-brake horsepower. If an internal combustion engine is used, the displacement may not exceed 50cc andthe power drive system may not require the operator to shift gears.

4.5.11INSPECT EVERY SCHOOL BUS FOR:*Check for evidence of Financial Responsibility unless government owned. CNG tank expiration (if equipped) and/or
documentation.

1. Horn
2. Windshield Wipers
3. Mirror
4. Steering
5. Seat Belts (driver only)
6. Brakes (system) Parking – (beginning with 1960 models)
7. Tires
8. Wheel Assembly
9. Exhaust System
10. Exhaust Emissions System (beginning with 1968 models)
11. Beam Indicator (beginning with 1948 models)
12. Tail Lamps (2)13. Stop Lamps (2)14. License Plate Lamp
15. Rear Red Reflectors (2)16. Turn Signal Lamps
17. Clearance Lamps
18. Side Marker Lamps

19. Side Reflectors
20. Red Warning Lamps (2 front – 2 rear – alternately flashing)
School bus RED signal lamps mounted as high and as widely spaced laterally as practicable, which should becapable of displaying to the front, two alternately flashing RED lights located at the same level AND to the rear,
two alternately flashing RED light located at the same level. These lights should have sufficient intensity to bevisible at 500 feet in normal sunlight. These lamps are intended to identify a vehicle as a school bus and to inform
other users of the highway that such vehicle is stopped on the highway to take on or discharge school children.
Some school buses may be equipped with 8 warning signal lamps, 4 red and 4 amber, working in an automatic
integrated system. This system of alternately flashing warning lamps will be accepted provided it has 2 red lamps
on the front and 2 red lamps on the rear.

21. Signs (“SCHOOL BUS” 8 inches in height on front and rear of the bus)
22. Fire Extinguisher (one quart chemical and conveniently located for immediate use)
23. Head Lamps (2)24. Exterior Crossover Mirror (Convex)
a. One or more exterior (crossover) mirror of convex design mounted at or near the front of the school bus andadjustable to give the driver, at all times when seated in the driver’s seat, a clear view of the ground or
roadway immediately ahead of the front bumper and beside the front wheels of the school bus. Crossover
mirror(s) is required on all school buses no matter what the design of the bus.

25. Motor, Serial, or Vehicle Identification Number
26. Gas caps on gasoline powered vehicles 2 thru 24 model years old
27. Inspect for applied window tinting
28. License Plates (2)Definition of a School Bus:
Every motor vehicle that complies with the color and identification requirements set forth in the most recent edition ofstandards as produced and sponsored by the National Commission of Safety Education of the National Education
Association, Washington, D.C., and being used to transport children to or from school or in connection with school
activities, not including bused operated by common carriers in urban transportation of schoolchildren.
Inspect School Buses For and Reject If:

1. All equipment required by size, weight, or class of the vehicle does not meet requirements.
2. “School Bus” signs are not present, readable, and of proper height.
3. Fire extinguisher is not of required capacity, proper type, or in good condition and properly located.
4. School bus RED signal lamps are not present, properly working, and in good condition.
5. Crossover mirror mounting is loose or will not adjust to different positions or will not hold firm after adjustment.
6. Crossover mirror offers unsafe interference with driver’s forward vision or hides wither front turn signal fromview of oncoming driver.

7. Crossover mirror’s reflective surface is cracked, broken, peeled, or tarnished, or has sharp edges.

04.10.0 PRIOR TO INSPECTION
A. The owner or operator of a vehicle shall present evidence of Financial Responsibility to the inspection station in oneof the following ways:
1.

A liability insurance policy, or a copy of the policy, in at least the minimum amounts required by law.

2. A standard proof of liability insurance form for personal vehicles promulgated by the Texas Department
of Insurance and issued by a liability insurer that included (Commercial Fleet Insurance Policies do not haveto contain (d) or (f)):

a.
b.
c.
d.
e.

the name of the insurer;
the insurance policy number
the policy period (dates of coverage must be 30 day minimum);the name and address of each insured person;
the policy limit or a statement that the coverage of the policy complies with at least the minimum
amounts of liability insurance required by the Act; andf.
the make and model of each covered vehicle.

3. An insurance binder that confirms that the owner and/or operator is in compliance. This would include
temporary insurance cards issued by insurance companies until the permanent card is sent to the policyholder. These
temporary cards should have a start/end date, policy number, vehicle information, and are usually valid for 30 days.
4. A copy of a certificate issued by the Department of Public Safety that shows that the vehicle is coveredby self- insurance.
5. A certificate (or copy) issued by the State Comptroller that shows that the owner of the vehicle has on
deposit with the treasurer money or securities in at least the amount required by law.
6. A certificate (or copy of certificate) issued by the Department of Public Safety that shows that thevehicle is a vehicle for which a bond is on file with the Department.
7. A copy of a certificate issued by the County Judge where the vehicle is registered that shows that the ownerhas on deposit, cash or a cashier’s check in at least the amount required by law.
8. Evidence of Financial Responsibility must be furnished for the TOWING VEHICLE of any trailer,
semitrailer, or pole trailer presented for inspection.
9.

A Non-owner’s policy is not acceptable as evidence of Financial Responsibility.

10. Proof of Financial Responsibility from another state is acceptable if it meets Texas liability requirements.
11. An electronic image displayed on a wireless communication device that includes the information requiredon the standard proof of liability insurance form, or the other proof of Financial Responsibility documents listed
above, as provided by the liability insurance provider is acceptable as Evidence of Financial Responsibility.
B. A Vehicle Inspection Report may not be issued for a vehicle for which the owner or operator fails to furnish therequired evidence of Financial Responsibility.
C. Vehicles exempt from the Financial Responsibility requirement are:
1.
2.
3.

Government vehicle (U.S., State-Texas, county, city, or other political subdivision.
Vehicles registered to volunteer fire departments.
Antique or former military vehicles not used for regular transportation.

4.15.1 INSPECTION REQUIREMENTS
Every vehicle which is registered in this state and operated on the highways of this state is required to be inspected.

4.15.2

VEHICLE EXEMPT FROM INSPECTION

1. Equipment:
a.
b.
c.
d.
e.
f.
g.
h.

Road-Building Equipment
Farm Machinery
Trailers
Semitrailers
Pole Trailers
Mobile Homes
Any vehicle required to display a Slow- Moving Vehicle Emblem
Travel Trailer*When actual gross weight or registered gross weight is 7,500 pounds or less.

2. A vehicle with one of the following type of Texas license plates:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.

Paper Dealer Demonstration/In-transit/Convertor Tag
Parade License
Former Military Vehicle License
In-Transit License
Machinery License
Disaster License
Farm Trailer License
Permit License
Antique License
Charitable Organization License
Custom Vehicle License
Street Rod License

3. A vehicle with one of the following Texas permits:
a.
b.
c.
d.

4.15.3

Vehicle Temporary Transit Permit
One-Trip Permits
Temporary 24-Hour Permits
Prorate Tabs

General Inspection Requirements

1. City, county, state or federally owned vehicles, if licensed with Texas plates, require inspection and they mustmeet the same requirements of any other vehicle of that same if that same size, weight, etc. (Example: Fire Trucks,
ambulances, police vehicles, and others; except that these vehicles are exempt from evidence of Financial
Responsibility requirements.) (See 04.10.00)
2. When inspection trailers, semitrailer, pole trailers, and mobile homes, these vehicles will be considered aseparate vehicle whether used in connection with a motor vehicle or not and will require a separate inspection. A
separate fee shall be charged for each vehicle inspected.
3. Each inspection shall be a complete inspection performed by a certified inspector and shall include a check of
all the items in the Vehicle Inspection Operations and Training Manual, except that a reinspection of a rejected vehicle
by the same station within 15 days of the initial inspection that resulted in rejection need only check the items previously
found defective, unless any other obvious defects are noted, A vehicle with no evidence of Financial Responsibility
will be refused inspection and no fee will be charged. Once the inspection a vehicle has begun, it must be completedwhether or not the vehicle is passed or rejected.
4. All inspections must be made only in the approved inspection areas at the location approved by the
Texas Department of Public Safety.
5. All inspectors shall be certified by the Texas Department of Public Safety. If a certified inspector changed
their place of employment, the Department representative must be notified immediately. Each inspection shall be
performed by a properly certified inspector if:a.

a certified vehicle inspector changes their place of employment, the inspector must prove theirability to correctly operate the testing equipment at the new vehicle inspection station.
b.
a certified vehicle inspector changes their place of residence, the inspector must notify the
Department of their new permanent street address within 30 days of the dare of the change.
c.
a certified vehicle inspector changes their name, the inspector must notify the Department of their
new name within 30 days of the date of change.
6. Inspection may be made while it is raining or snowing. Care must be exercised when making inspection
during inclement weather. Road (brake) tests will be permitted with due care when it is raining or when braking
surfaces are wet. No road (brake) tests are permitted on icy road test areas.
7. Refusing to inspect a vehicle submitted for inspection without sufficient cause or the careless inspection
and willful violation of inspection requirements may result in suspension of the Certificate of Appointment andpossible court action.
8. Vehicle not registered in the state of Texas may be inspected, and issued a Vehicle Inspection Report if
they meet Texas’ requirements, including evidence of Financial Responsibility.
9.

Complete Vehicle Identification Number or serial number shall be listed on the Vehicle Inspection Report.

10. Public Station: A station, open to the public performing inspection on vehicles presented by the public.
11. Fleet Station: A station not providing vehicle inspection services to the public.
12. Government Station: A statin operated by a political subdivision, or agency of this State.
13. Each Official Vehicle Inspection Station must inspect every vehicle (according to endorsement) presented
for inspection as prescribed by the rules and regulations, whether rejecting or approving it. A vehicle rejected by
one inspection station may be reinspected by another inspection station if the vehicle owner desires to have this done,
and is willing to pay an additional fee.
14. Reports of violations of the Vehicle Inspection Act or of those rules and regulations will be investigated. Whensuch reports are found to be justified they may result in the suspension of the inspector or station, possible court action,or other appropriate action. Repeated violations or serious violation may result in the revocation of the appointment by
the Department or action against the certified inspector or station.
15. The term “inspection” as herein used shall not include repairs or adjustments. Repairs or adjustments
necessary to bring the vehicle into conformity with these regulations may be made by agreement between the vehicle
owner and such inspection station or whatever repair shop the vehicle owner may select.
16. All vehicles owned by the federal government shall be exempt from all provisions of the Vehicle Inspection
Act or rules and regulations, except those which are registered in Texas and display Texas registration plates.
17. The Department of Public Safety extends the time within which an inspection shall be obtained by a resident
owner or operator of a Texas-registered vehicle, when the vehicle has no valid inspection. The extension will be
granted only on the first occasion of operation in this state during an inspection year and only until the resident owneror operator of the vehicle has arrived at his home, station, or destination in this state and for three days thereafter.

18. Each vehicle that meets the requirements set forth in these regulations shall be issued a Vehicle Inspection
Report signed by the inspector. Those vehicles that do not meet the inspection requirements must be issued a
Vehicle Inspection Report rejection receipt.

4.15.4Foreign Vehicles

A. The inspection of vehicles applies to foreign-made motor vehicles as well as American-made motor vehicles.

However, there are some foreign-made vehicles that cannot be inspected in the usual manner. Therefore, when inspecting
those foreign-made vehicles, you are authorized to follow the Department’s recommendation for inspection and to reject
any vehicle for an item that is worn, missing, broken, or defective in any manner that exceeds the Departments tolerance
for replacement. Many of these vehicles are not export models and, therefore, are equipped with lighting and other devices
that do not meet standards adopted by the Texas Department of Public Safety. All devices must meet applicable
Department standards. In cases where those devices do not comply with the inspection requirements, legal devices must
be installed. Head lamps on those vehicles must be of a type acceptable by the Department before a passing Vehicle
Inspection Report can be issued.

B. Texas requires that all safety and emissions components for that model year be installed and operational. Check

with the vehicle manufacturer as to what was required in the United States for that year model. Vehicle importation is
the responsibility of the U.S. Customs and Border Protection. The critical point in vehicle importation is whether thevehicle meets the Federal Motor Vehicle Safety Standards (FMVSS) established by the National Highway Traffic
Safety Administration (NHTSA). Emissions equipment and lighting equipment are common problem areas.

4.15.5

All-Terrain Vehicle

1. All-Terrain Vehicle (ATV) shall not be inspected regardless of how equipped. This class vehicle is not designed

for use on public roads.

4.15.6

Unique Vehicles. (Reconstructed/Rebuilt Vehicle, Engine Swaps, Kit Cars,
Miniature Motorcycles)

A. Reconstructed/Rebuilt Vehicles. All vehicles used on the public highways are required to meet all of the state

equipment laws and requirements; therefor, reconstructed or rebuilt vehicles which are using the public highways are also
expected to meet all of the state equipment laws and regulations. Reconstructed or rebuilt vehicles in many instances failto meet state requirements and therefor, are not legal for use on the public highways.

All reconstructed or rebuilt vehicle (sans or dune buggies or hot rods) must comply with inspection requirements for theclass of motor vehicle it is being inspected as, such as a car, truck, motorcycle, or motor-driven cycle. Be sure to checkreconstructed or rebuilt vehicles for all required items of inspection with particular attention to the lighting devices. Headlamps shall be of a type acceptable by the Department. No modifications are allowed that will change the original design
or performance of any lamp. Only acceptable automobile head lamps may be used on cars and trucks. Wither the 7-inch
head lamps or both dual head lamps (type 1 and type 2) may be used. Only acceptable motorcycle head lamps may be
used on motorcycles, motor-driven cycles, and mopeds.
All lighting devices must be of an acceptable type that meet Department standards and must comply with the mounting
heights as specified in the inspection requirements.
The year model of a reconstructed vehicle will be the same year in which it was reconstructed and not the year oforiginal manufacture. Therefore, the inspection requirements would be for the model year of the vehicle (same as theyear of reconstruction) or the year model of the engine itself, whichever is the later model. Motor vehicles used forcompetitive racing, such as modified stock cars, dragsters, and hot rods may be inspected. When such a vehicle ispresented for inspection, all rules and regulations regarding the inspection the vehicle will apply. This applies to brakerequirements, exhaust systems, as well as any other item required in these provisions.

B. Engine Swaps. The simple rule is that a vehicle must have all emission components that were present when itwas manufactured. A replacement engine can be installed if: (1) the design of the replacement engine has received
prior approval of the EPA; (2) the design of the replacement engine is compatible with the vehicle chassis such that
all applicable pollution control systems and devices are properly installed and operable; and (3) the resulting vehicle
is identical with regard to all emission related parts and emission related engine design parameters and calibration, tothe same or a newer model year, as originally equipped.

C. Kit Cars. Vehicles are required to meet emissions standards (i.e. catalytic converter, oxygen sensors, exhaustgas recirculation, evaporative emissions, etc…) for the year the vehicle is assembled in order to pass a safety
inspection. Vehicle manufacturers have to certify their vehicle meet EPA emissions standards. Just as the EPA does
not allow an individual to reverse engineer a vehicle to defeat emission standards, they do not allow an individual tobuild a brand new “old” vehicle to bypass emissions standards. It is possible if you use older parts (like a 1965
engine, or complete 60’s frame and power train) that the vehicle will be registered as that model year (replica), but thatis determined by the Texas Department of Motor Vehicles. An inspection station shall follow the model year
registration classification of the vehicle in determining the inspection criteria for that particular vehicle. The Texas
Department of Motor Vehicles has a custom vehicle and street rod license plate program that may be of assistance inlicensing a kit car. The Texas Department of Motor Vehicles is responsible for issuing a certificate of title,
registration, and establishing a safety inspection program for custom vehicles and street rods.

D. Miniature Motorcycles. Miniature motorcycles are illegal to operate on public roadways. Miniature motorcycles,
also known as pocket biked or pocket rockets, can only be operated on private property. Miniature motorcycles donotmeet the equipment standards under both federal and state law; therefore they cannot be registered or inspected.

E. Neighborhood Electric Vehicles. (TRC 551.301-303). A “Neighborhood Electric Vehicle” means a vehicle that

can attain a maximum speed of 35 miles per hour on a paved level surface and otherwise complies with Federal Motor
Vehicle Safety Standard 500 (49 CFR 571.500). A neighborhood electric vehicle (NEV) may be operated only on a street
or highway for which the posted speed limit is 45 mile per hour or less. A NEV is a motor vehicle that:•is originally manufactured to meet, and meets, the equipment requirements and safety standards established inFederal Motor Vehicle Safety Standard 500•

Has four wheels•••

does not have to be powered by electricity (other power sources, such as gasoline are acceptable)
is capable of attaining a speed of more than 20 miles per hour but not more than 35 miles per hour, andis not a golf cart designed primarily for transporting persons on a golf course

A NEV is required to be titled in order to be registered for operation on public roads. The registration classification of
a NEV will be a passenger vehicle (Passenger Vehicle plate). A NEV requires the same Financial Responsibility or
liability insurance as any other motor vehicle operated on the public roadways and a 17 digit VIN.
A NEV shall be equipped with:

•
•
•
•
•
•

Headlamps
Front and rear turn signal lamps
Tail Lamps
Stop Lamps
Reflex reflectors (one red on each side as far to the rear as practicable, and one red on the rear)
Exterior mirror mounted on the driver’s side of the vehicle and with and exterior mirror mounted on thepassenger’s side of the vehicle or an interior mirror•••

Parking brakeWindshield that conforms to FMVSS on glazing materials (49 CFR 571.205)
Seat belt assemblies at each designated seating position.

A NEV that is not required to display a Slow- Moving Vehicle Emblem and is registered as a passenger vehicle by

TxDMV will not be required to be inspected.
F. Low Speed Vehicles (TRC 551.401-405). A Slow-Moving Vehicle means a motor vehicle designed to operate at a
maximum speed of 25 miles per hour or less. A slow-moving vehicle emblem in accordance with TRC 547.703. Low
Speed Vehicle would include vehicles such as golf carts and certain utility vehicles. A low speed vehicle is required todisplay a slow-moving vehicle emblem when it is operated in a public highway in accordance with TRC 547.703(d).
TRC 548.052 states that a vehicle required to display a slow-moving vehicle emblem is not subject to inspection.

4.15.7

Multi-Purpose Vehicles

Multi-purpose passenger vehicle means a motor vehicle with power, except a trailer, designed to carry 10 persons or lesswhich is constructed either on a truck chassis or with special features for occasional off-road operation. Lighting
requirements for this type vehicle would refer to diagrams of similar type vehicles such as bus or van-type truck. The
type of registration plate is not a determining factor in the number of lighting devices required for inspection purposes.

4.15.8Compressed Natural Gas. (CNG)

Compressed Natural Gas (CNG) Fuel Systems have been added as an item of inspection. CNG Fuel systems mustcomply with the requirements of 49 CFR 571.304. The expiration date of the fuel container has not been exceeded.

4.15.9Unsafe Vehicles

It is a violation of Transportation Code, Section 547.004 (a) for any person to operate or move on any highway any
vehicle unless the equipment upon any and every said vehicle is in good working order and adjustment as required in thisAct and said vehicle is in such safe mechanical condition as not to endanger the driver or other occupant or any person
upon the highway. It is also a violation for any person to operate or move or for the owner to cause or to permit to be
moved on the highway any vehicle which is in unsafe condition as to endanger any person, or which does not containthose parts or is not at all time equipped with such lamps and other equipment in proper condition and adjustment as
required by law, or which is equipped in any manner in violation of the law, or for any person to do any act forbidden or
fail to perform any act required by law.

4.15.10Special Lighting Devices and Reflector Requirements:

The law described certain lamps and reflectors that certain vehicles must have regardless of whether or not thosevehicles are operated at night. The law further states that when these vehicles are operated at night all of theseprescribed lamps must be operational.
Any lighting device, lens and/or reflector used on a vehicle must meet standards adopted by the Texas Department of
Public Safety for that particular use.
Whenever a requirement is declared as to the mounting height of lamps or devices, it shall mean from the center ofsuch lamp or device to the level ground upon which the vehicle stands when such vehicle is without a load. Whenevera requirement is declared as to visibility distance from which certain lamps and devices shall render objects visible orwithin which such lamps or devices shall be visible, these provisions shall apply at nighttime in respect to a vehicle
without a load when upon straight, level, unlighted highway under normal atmospheric conditions unless a different
time or condition is expressly stated.
REJECT ANY VEHICLE PRESENTED FOR INSPECTION WHICH IS NOT EQUIPPED WITH ALL THE
LAMPS AND DEVICES PRESCRIBED REGARDLESS OF HOW AND WHEN THE VEHICLE IS
OPERATED.

4.15.11

Commercial Motor Vehicle Inspection Program.

The term “commercial motor vehicle” means a self-propelled or towed vehicle, other than a farm vehicle with a grossweight, registered weight, or gross weight rating of less than 48,000 pounds, that is used on a public highway if:

1. The vehicle or combination of vehicles has a gross weight, registered weight, or gross weight rating of morethan 26,000 pounds (excluding the occasional transportation of personal property by individuals not for compensation orin the furtherance of a commercial enterprise, such as a recreational vehicle); or
2. The vehicle is a farm vehicle with a gross weight, a registered weight, or a gross weight rating of more than
48,000 pounds; or
3.

The vehicle is designed to transport more than 15 passengers, including the driver; or

4. The vehicle is used to transport hazardous materials in a quantity requiring placarding by a regulation issued
under the Hazardous Materials Transportation Act; or
5. The vehicle or combination of vehicles has a gross weight rating of more than 10,000 pounds and is operated ininterstate commerce and registered in this state.
6.

The vehicle is a school bus that will operate at a speed authorized by the Texas Transportation Code: or

7. The vehicle is a school activity bus that has a gross weight, registered weight, or gross weight rating of
more than 26,000 pounds, or is designed to transport more than 15 passengers, including the driver.
8. Refer to Chapter 6 of the Vehicle Inspection Operations and Training Manual for the requirements of the
Texas Commercial Vehicle Inspection Program.
4.20.1INSPECTION ITEM CRITERIAAll items of inspection enumerated are required to be inspected in accordance with the Texas Transportation Code,
Chapter 548, and these rules and regulations prior to issuing a Vehicle Inspection Report.
During the brake test of a vehicle requiring a Commercial Driver License (CDL), the certified inspector may ride in thevehicle driven by its operator observing the braking performance at the brake test area, if the inspector is not licensed
to operate the class of vehicle presented for inspection.
Any vehicle presented for inspection that is modified for use by a disabled person may be driven by the operator withthe certified inspector riding and observing during the brake test portion of the inspection.
4.20.2Compressed Natural Gas (CNG)

After verifying vehicle insurance, CNG tank should be inspected with the vehicle owner present.

1. Inspection Procedure
Visually inspect label or documentation that the expiration date of the fuel container has not been exceeded and that it
was manufactured in accordance with 49 CFR 571.304.

2. Inspect and reject if:
a.
b.
c.
d.

The CNG Fuel Container was not manufactured in accordance with 49 CFR 571.304.
The CNG Fuel Container has exceeded its expiration date.
Compliance with 49 CFR 571.304 cannot be determined through observation or documentation.
Fleet operator does not provide documentation that the fleet operator employs a certified installer or inspector
for CNG Fuel System, unless compliance can be determined by reviewing the CNG label affixed to the vehicle
or from documentation provided by the original equipment manufacturer or from a certified CNG installer or
inspector.

3. If the CNG Fuel system does not pass the inspection, the inspection process shall not proceed any further.
The inspector should advice the owner operator of the vehicle the reason for the failure. A failing Vehicle

Inspection Report is not required to be completed.
4.20.3

Beam Indicator

Every new motor vehicle registered in this state after January 1, 1948, other than a motorcycle or motor-driven cycle,
which has multiple beam rod lighting equipment, shall be equipped with a beam indicator (no certain color required)
which shall be lighted whenever the uppermost distribution of light from the head lamp is in use, and shall not beotherwise lighted. Said indicator shall be so designed and located that when lighted it will be readily visible without
glare to the driver of the vehicle so equipped.
1.

Inspection Procedure

Check operation and condition visually.
2.

Inspect and reject if: (When required)

a.
b.
c.
d.
4.20.4

Vehicle not equipped with a beam indicator.
Improper switching indication
Produces a glaring light.
Inoperative for any reason.

BrakesEvery passenger car, truck, school bus, motorcycle and autocycle shall be equipped with brakes acting on all wheels
except:1.

Motor-Driven cycles, motor scooters, motorcycle sidecars, or mopeds.

2. Trucks and truck tractors (manufactured prior to 1981) having three or more axles need not have brakes on
the front wheels, except that when such vehicles are equipped with at least two steerable axles, the wheels on one
steerable axle need not have brakes. However, such trucks and truck tractors must be capable of complying with theperformance requirements of this Act.
3. Any vehicle being towed in a driveaway or towaway operation, provided the combination of vehicles iscapable of complying with the brake performance requirements, does not require brakes acting on all wheels.
Definition of Terms:
Brake System: A combination of one or more brakes and their related means of operation and control.
Service Brake System: A brake system used for retarding, stopping, and controlling the vehicle undernormal operating conditions. This brake is sometimes referred to as “foot brake.”
Parking Brake System: A brake system used to hold and maintain the vehicle in a stationary position.
A positive mechanical means is employed to hold the brake applied when the vehicle is unattended.
Pedal Reserve: As applied to hydraulic, mechanical, or power assisted hydraulic brakes, this is the amount of
distance (total pedal travel) left in reserve when the pedal is depressed to the brake-applied position. The
purpose of the pedal reserve check is to ascertain the degree of the brake adjustment and todemonstrate satisfactory brake actuating system condition.
Equalization: Brakes shall be so adjusted as to operate as equally as practicable with respect to the wheels on
the opposite sides of the vehicle.
Driveaway-Towaway Operation: Any operation in which any motor vehicle, trailer, or semitrailer, singly

or in combination, new or used, constitutes the commodity being transported when on set or more of wheelsof any such vehicle are on the roadway during the course of the transportation, whether or not such vehicle
furnishes the motor power.

Inspection ProcedureService brake performance tests should be conducted on a substantially level, hard, smooth surface road or area that is
free from loose material, oil or grease. Using the service brake only, the stopping ability of the vehicle should be tested
by one of the following methods.

4.20.5

Service Brake Test Methods

1. On Road (Decelerometer): Mount an approved decelerometer at centerline of vehicle.
Level the decelerometer. At a speed of 20 mph apply the service brake firmly. Observe
decelerometer reading.
2. On Road (Brake Test Area): At a speed of 20 mph apply service brakes firmly. Observe whether a vehicle
comes to a smooth stop within the distance prescribed by the chart, “Required Brake Performance.” Inspector shouldhave firm control of the steering wheel throughout the test.
3. Platform-Type Tester: Drive vehicle onto “drive-no-and-stop” platform tester. Apply brakes firmly ata speed from 4-8 mph without wheel lockup. All braking action must take place on the platforms. Front-

wheel drive vehicles are to be checked by road test only unless a platform tester specificallyapproved by the Department to test front-wheel drive vehicle is used. These machines may be used
to inspect the relative effectiveness of each wheel. There should be braking action on all wheels andthe action on any one wheel should be 75 percent or more of the action on the other wheel on thesame axle.
4. Roller-Type Brake (Dynamometer-Force Measuring Type):
a.
b.
c.

Adjust tire inflation to recommended values.
Position vehicle on dynamometer rolls and begin test.
Follow Department’s recommended testing procedures.

5. Test Brake Hydraulic System for Leakagea.
While the vehicle is stopped, depress brake pedal under moderate foot force (40-60 pounds in nonpowered systems and 15-20 pounds in power assisted systems).
6. Test Pedal Reservea.
While the vehicle is stopped, depress brake pedal under moderate foot force (40-60 pounds in nonpowered systems and 15-20 pounds in power assisted systems.
7. Condition of Vacuum Systema.
Visually inspect system for collapsed, broken, badly chafed and improperly supported hosed andtubes, and loose or broken hose clamps.
Electric Brake System. (Trailers) (Ammeter)

1. Insert a low-range dc ammeter into the brake circuit between the controller and the brakes.
2. With controller in “off” position. Ammeter should read zero.
3. Gradually apply controller and observe maximum ammeter reading and current modulation.
4. Gradually return controller to “full off” and observe return to zero ampere and current modulation.
5. Divide maximum ammeter reading by number of brakes.
Check for loose or dirty connections and for broken, frayed or unsupported wires.
4.20.6

Brake Test Procedures

If a road test is used for checking service brakes:

1. Brake test area must be used on every inspection made.
2. When it is raining, snowing, or when the brake surfaces are wet, brake tests are permitted; however, if thecertified inspector feels that they cannot safely and with due care accurately check the service brakes they may refuse
to make the inspection.
3. No inspections are permitted when the brake test areas are icy.
4. Extreme care must be exercised and sudden stops must be avoided if other traffic is affected.
5. All vehicles so tested (brake test area) should be driven at a speed of 20 miles per hour and the vehicle muststop as indicated by the stopping distance chart. (See the Brake Performance Chart in Reference Section 04.30.06.)
6. The brake application must be started as close to a speed of 20 miles per hour as possible. The stopping
distance is to be measured from the point at which the service brake pedal or control begins. The vehicle must stop
within the prescribed stopping distance requirements and must not pull to the right or left. Using the service (foot)brake only, the stopping ability of the vehicle should be tested by actual operation of the vehicle.
7. When applying brakes to the moving vehicle, the braking force must be evenly distributed to the wheels.

The brakes should be so adjusted as to operate as equally as practicable with respect to the wheels on the opposite
sides of the vehicle. The driver should have a firm control of the steering wheel throughout the test.

8. Brakes on a truck-tractor may be inspected without a trailer; however, a trailer shall be inspected onlywith a towing vehicle attached.
9. Approved brake machines may be used for testing brakes so long as the machine and the braking surfaces
afford a competent brake test.
10. All testing of service brake for stopping distance and equalization must be done either by an actual road test
or by a machine.
11. If a platform-type tester is used, a measured brake test area must also be maintained to test vehicle with morethan two (2) axles or vehicle with front-wheel drive, unless, the tester has been specifically approved by the Department
to test these types of vehicles.
4.20.7

Platform-Type Tester

This type of brake tester is a drive-on-and-stop machine consisting of 4 pads or platforms, one for each wheel. Whenthe brakes are applied at the time the vehicle is moving on the pads, the braking effort at each wheel caused a
proportionate movement of the pad against the measuring system. All brake action must take place on the platforms.

1. Operationa.
Drive vehicle on brake tester about 5 miles per hour and apply the brakes firmly but not
severely. (Excessive speed and braking should be avoided).

b.

These machines may be used to inspect the relative effectiveness of each wheel. There should bebraking action on all wheels.

c.

Each gauge will record the individual wheel braking effort in hundreds of pounds.

d.

Total braking effort and comparative braking energy can be determined.

e.

The tester must be properly installed, maintained, and kept clean at all times.

f.

rejected.

If the vehicle fails the first brake test, a second brake test must be conducted before the vehicle is

2. Equalization and tolerances:a.

Total reading must not be less than 50% of the total weight of the vehicle if the vehicle has
brakes on all wheels. The required 50% is the equivalent of a vehicle stopping within 25 feet at 20 miles per
hour.

b.

Total reading must not be less than 35% of the weight of the vehicle if the vehicle does not havebrakes on all wheels. The required 35% is the equivalent of a vehicle stopping within 39 feet at 20 miles per
hour.

c.

Brake machine readings on each opposing wheel of the same axle shall be within 25% on the front
and within 35% on the rear axle.

3. Conditions affecting break tester readings;a.

Wet tires or wet tread plates (pads) will cause reading of braking efficiency to be inaccurate.

b.

Grease, sand, or other foreign material on tires or tread plates (pads) will also cause readings ofbraking efficiency to be inaccurate.

4.20.8c.

Worn or slick tires will not affect brake tester as much as they will affect a road test.

d.

Dirt and debris under the tread plates (pads).

Roller-Type Tester.

This type brake tester (Dynamometer [Force Measuring Type]) is equipped with powered rollers that rotate the wheels
at a speed of approximately 35 to 45 miles per hour with the vehicle in a stationary position. The brakes are applied
while the wheels are turning and developing braking force. Measurements of both BRAKING FORCE (Brake Effort)and BRAKE BALANCE are indicated on the gauge9s0s. Brake fade can also be tested on this machine.

1. Operation – Acceptance Tests. With tester in operation and wheels turning, apply brakes slowly until brakeeffort teaches the following values and hold for 5-6 seconds:a.

Small vehicle up to 2,200 pounds – 175 lb. Brake Effort/Wheel (Total 350 pounds)b.

Light compacts 2,300 to 3,000 pounds – 230 lb. Brake Effort/Wheel (Total 460 pounds)c.

Heavy compacts 3,100 to 3,600 pounds – 285 lb. Brake Effort/Wheel (Total 570 pounds)d.

All others over 3,700 pounds – 355 lb. Brake Effort/Wheel (Total 670 pounds)e.

Brake Balance Test – During the “Brake Force Test,” variance in braking force between wheels
should not exceed 70 pounds.

2. As additional service to the vehicle owner or operator, the inspection station is permitted to perform an
additional dynamic brake inspection according to recommendations of the equipment manufacturer. However, legal
reject must be based on the above parameters under “Operation Acceptance Tests”.
a.

If substandard brake conditions are found that are not exposed by the above acceptance test, the inspection
station may suggest that the brake repairs be made but must clearly inform the vehicle owner or operator thatsuch repairs are not mandatory to pass inspection.

4.20.9

Decelerometer-Type Tester.

This tester is an inertia-type Decelerometer consisting of a scale to measure the vehicle’s deceleration or equivalentbraking force (sometimes referred to as brake efficiency in percentages. The Decelerometer is generally placed as close
to the center of the vehicle as practicable (on window of right front door) and the vehicle is operated on the highway
outside the inspection station.

1. Operationa.

Level Decelerometer and set to “(0).”b.

Drive vehicle on a clean, level road (road grade of 5% or less) at 20 mph and apply brakes evenly,
without skidding vehicle wheels.

c.

Read the dial to see if vehicle stopped within required stopping distance for class of vehicle.

d.

For brake balance (equalization), the vehicle should stop in a straight line. A pull to wither side,right or left, during a test stop indicates brake unbalance.

2. Conditions affecting brake tester readings:a.

Wet tires and highways may cause readings of braking efficiency to be inaccurate.

b.

Oil slicks, sand or other foreign material on tires or highways may also cause readings of braking
efficiency to be inaccurate.

4.20.10c.

Worn or slick tires may also cause reading to be inaccurate.

d.

Any fast, hard application of the brake can cause wheel lockup and tire skid.

Autocycle, Motorcycle, Motor-Driven Cycle, and Moped Brake Requirements.

Every autocycle, motorcycle, motor-driven cycle, and moped, at all times and under all conditions of loading, upon
application of the service brake pedal or control, shall be capable of:

1. Developing a brake force that is not less than 43.5% of its gross weight, OR
2. Decelerating to a stop from not more than 20 miles per hour at not less than 14 feet per second, OR
3. Stopping from a speed of 20 miles per hour in not more than 30 feet, such distance to be measured from thepoint at which movement of the service brake pedal or control begins.
4. Autocycles and motorcycles shall be provided with adequate brakes on all wheels. Sidecars are not required tohave brakes when braking performance of the motorcycle or motor-driven cycle is met. Motor-driven cycles andmopeds are required to have brakes on at least the rear wheel. During the brake road test, an autocycle, motorcycle
motor- driven cycle, or moped may be driven by its owner or operator with certified inspector observing the braking
performance at the brake test area if the certified inspector is not licensed to operate a motorcycle, motor-driven cycle,
or moped.
4.20.11

Inspect Service Brakes for and reject if:a.

Vehicle is not equipped with required service brakes.

b.
Upon first application, there is less than 2 inches of pedal reserve as determined by the use of an
accurate measurement of the full applied brake pedal of vehicle equipped with conventional brakes.
c.
Upon first application, there is less than 1 inch of pedal reserve as determined by the use of an accurate
measurement on the full applied brake pedal of vehicles with power brakes (power must be on and operating whentested).
d.
On service brakes that cannot be checked with the use of an accurate measurement, there is less than areserve of one- third of the total travel distance of the brake actuator.
e.
Brake pedal height cannot be maintained under moderate foot force (40 to 60 pounds forconventional – 15 to 20 pounds for power) for a period of 1 minute.
f.
There is visible leakage or audible seepage in hydraulic lines and cylinders, or any other part ofthe service brake system.
g.
Fluid level in the master cylinder is more than 1 inch below the top of the reservoir or below
manufacturer’s recommended level.
h.

Hosed or cables are restricted, abraded, crimped, cracked, leaking, frayed, or broken.

i.

Brake rods or mechanical parts are missing, broken, badly worn, or misaligned.

j.

Brake operating levers or control cables do not operate freely, improperly positioned, or misaligned.

k.

Any part of the service brake system has been removed, disconnected, rendered inoperative.

l.
There is obvious metal to metal contact sound when brakes are applied, and upon investigation, drumor disk is being scored.
m.

The service brakes do not develop the required total braking force as determined by machine tests.

n.

Brakes do not meet requirements for stopping distances for the class of vehicle.

o.

The brakes are not equalized as determined from road testing or by machine test of the vehicle.

p.

Red brake warning lamp or signal is on or comes on during test.

q.

Anti-lock (ABS) lamp or signal which is on or comes on during test will not be cause for rejection.

r.
It is imperative that brake system reservoir cover and the surrounding area be thoroughly cleaned
before cover is removed for inspection to assure that NO DIRT OR WATER is mixed with the brake fluid.
4.20.12
1.

Electric Brake System. (Trailers) (Ammeter)
Inspection Procedure.

a.
Insert a low-range (0 to 25 amperes will be adequate for most two and four brake systems; 0 to 40
amperes may be required for a six brake system) DC ammeter into the brake circuit between the controller and the brakes.
With controller in “off” position, ammeter should read zero. Gradually apply controller to “full on” position; observe
maximum ammeter reading and current modulation. Gradually return controller to “full off” and observe return to zeroampere and current modulation. Divide maximum ammeter reading by number of brakes. Check for loose or dirty
terminal connection and for broken, frayed, or unsupported wires.
2.

Inspect for and reject if:

a.
Trailers showing a per-brake maximum amperage value of more than 20% above, or less than 30%
below, the brake manufacturer’s maximum current rating.
b.

Ammeter showing no reading, or needle indication not steady on application and release of brake controller.

c.

Loose or dirty terminal connections; broken, frayed, or unsupported wires.

d.
Trailers using single conductor or non- stranded wires or wires of a size below brake manufacturer’s
minimum recommendation.
4.20.13

Parking Brake

The inspection of the parking brake (auxiliary or holding) applies only to all motor vehicles beginning with the modelyear 1960. This does not include autocycles, motorcycles, motor- driven cycles, mopeds, trailers, semitrailer, pole
trailers, and mobile homes. Some types of parking brake may be actuated by foot or hand lever. The parking brake may
be assisted by the service brake or other source of power, provided that failure of the service brake actuating systemor other power assisting mechanism will not prevent the parking brakes from being applied. The parking brakes
should be so designed that when once applied- despite exhaustion of any source of energy or leakage of any kind. If themeans of applying the parking brakes and the service brakes are connected in any way, they shall be so constructed that
failure of any one part shall not leave the vehicle without operative brakes. Brake lock systems will not meet the
parking brake requirement (i.e. placing the transmissions in park).
1.

Inspection Procedure

On a motor vehicle that has the automatic parking brake release when the transmission is placed in gear, the parking
brake should be applied and the engine accelerated enough to cause a slight pull on the braking mechanism todetermine if it is working properly.
2.

Inspect Parking Brake for and reject if:a.

Motor vehicle is not equipped with a parking brake.

b.

Operating mechanism, when fully applied, does not hold the vehicle. The service brake pedal orcontrol, shall be capable of:c.

Actuating mechanism is not fully released when the release control is operated.

d.

Any mechanical parts are missing, broken, badly worn, or not operating properly.

e.

Pull cables are badly worn, stretched, frayed, or not operating freely.

f.

Parking brake will not hold the vehicle in place when, with the engine running, the vehicle
is place in forward gear and the engine is accelerated enough to cause a slight pull on the braking
mechanism.

4.20.14

Vacuum Brake System

1.

When checking the operation of the vacuum system on a truck or truck-tractor, the trailer shutoff valvesmust be closed. When checking the operation of the vacuum system on a trailer or semitrailer, the trailer must be
coupled to a truck or a truck-tractor with the trailer shutoff valve open. The engine of the truck-tractor should beallowed to run for one minute to build up vacuum.

a.

Visually inspect system for collapsed, broken, badly chafed, and improperly supported hoses andtubes, and loose or broken hose clamps.

b.

On truck or truck-tractor, depress brake pedal with moderate foot force. While maintaining this force
on the pedal, start engine, and observe if pedal falls slightly when engine starts.

c.

On trucks with low vacuum indicators build full vacuum. Shut off engine and reduce vacuum by making
a series of moderate brake application. A flashing or buzzing signal shall function when vacuum reaches weight
inches mercury.

d.

Apply and release pedal a number of times and observe actin on brake chamber rod on trailers.

2. Inspect for and reject if:a.

Hosed, tubes, or connection leaking, restricted, abraded, crimped, cracked, or broken; or collapse of
vacuum hoses when vacuum is applied. Connecting lines not properly attached or supported to prevent
damage or abrasion by contact with frame, axle, other lines, or any other part of the vehicle.

b.

Evidence of leakage in the system.

c.

In vacuum-assisted systems, service brake pedal does not move slightly as the engine isstarted while pressure is maintained on the pedal.

d.

Trailer vacuum brake chamber rods not operating in conjunction with the tractor brake
pedal, or not reaching full released position.

e.

In vacuum-equipped vehicle in excess of 10,000 pound gross vehicle weight and vehicle
combinations, insufficient vacuum reserve to permit three full service brake applications after engine
is stopped.

f.
4.20.15

Failure of low-vacuum indicator to function when system is reduced to eight inches of mercury vacuum.

Air Brake System

1. With air system charged, open drain cocks in each reservoir, carbon trap, or filter used in the air system; closedrain cocks and with air system at zero gauge pressure, check pressure buildup, running engine at fast idle andrecord time to raise air pressure from 50 to 90 psi on the gauge. Check pressures at which light, buzzer, or flag
connected to the low-pressure indicator is no longer visible or audible. Continue running engine until the governor
cuts out and observe pressure-gauge reading. With engine idling, reduce pressure in system by making a series ofbrake applications and observe pressure at which governor cuts in. With system fully charged, stop engine andcheck for air leakage by recording the pressure drop in psi per minute both with brakes released and brakes fully
applied. Inspect for restricted, abraded, collapsed, improperly supported, or broken hoses and tubes and audible
leaks. Check safety valve for freedom of action. If the compressor is belt drive, check belt for tightness andobserve belt condition. Check air compressor for air cleaner condition and restrictions.
2. Inspect for and reject if:a.
The time required to build up air pressure from 50 to 90 psi is more than 3 minutes with engine
running at fast idle.
b.
Warning device (light, buzzer, or flag) connected to the low pressure indicator of the air brakesystem not operating when air pressure is lowered to 55 psi.
c.
Governor cut-in pressure lower than 80 psi or cut-out pressure higher than 135 psi, unless othervalues are recommended by the vehicle manufacturer.
d.

Compressed air reserve insufficient to permit one full service brake application after engine isstopped, and with system fully charged, without lowering reservoir pressure more than 20%, below initial reading.
e.
Air brake pressure drop of more than 2 psi in 1 minute for single vehicle or more than 3 psi in 1
minute for vehicle combinations, with engine stopped and service brakes released.
f.
Air pressure drop of more than 3 psi in 1 minute for single vehicle or more than 4 psi in 1 minutefor vehicle combinations with engine stopped and service brakes fully applied.
g.
Hoses, tubes, or connections leaking, restricted, abraded, crimped, cracked, or broken.
Connecting lines not properly attached or supported to prevent damage or abrasion by contact with frame, axle,
other lines, or any other part of the vehicle.

4.20.16h.

Valves, diaphragms, or piston cups leaking audibly.

i.

Air safety valve inoperative.

j.

Compressor drive belt without sufficient tension, or badly worn or frayed.

k.

Compressor air intake cleaner clogged sufficiently to prevent proper intake of air.

Clearance Lamps

1. Required on all:Buses 80 inches or more in overall width. Trucks and Truck-Tractors 80 inches or more in overall width. Trailers andsemitrailers 30 feet or more in overall length. Pole trailers.
a.
Clearance lamps, so far is practicable, be mounted on the permanent structure of the vehicle in such amanner as to indicate the extreme height and width of the vehicle. When identification lamps are present and aremounted as high as practicable, clearance lamps may be mounted at optional height. When mounting of front
clearance lamps results in such lamps failing to indicate the extreme width of the trailer, such lamps may

be mounted at optional height but must indicate, as near as practicable, the extreme width of the trailer.
b.
Clearance lamps and side marker lamps may be mounted in combinations, provided illumination
is given as required by law.

c.
color.

Clearance lamps mounted on the front or on the sides near the front of a vehicle shall display an amberd.

Clearance lamps mounted on the rear of on the sides near the rear of a vehicle shall display a red color.

e.
Clearance lamps shall be visible under normal atmospheric conditions at a distance between 500
feed and 50 feet from the vehicle on which mounted.

f.
On buses, trucks and truck-tractors 80 inches or more in overall width and trailer and semitrailers
80 inches or more in overall width:2.

i.

On the front, two clearance lamps.

ii.

On the rear, two clearance lamps.

Inspection Procedures:

Check operation and condition visually.

3.

Inspect for and reject if:a.

Lamps are not present.

b.

Lamps are not securely mounted and properly located.

c.

Lamps do not emit required color; lens or bulb painted; or not steady burning.

d.

Visibility requirements are not met.

LED lights have less than 50% of the diodes illuminated.
e.
Lens is discolored, or missing.
f.
Wiring insulation is worn, rubbed bare, or shows any evident of burning, short circuiting, or poor
electrical connections.
g.
Lens is cracked or broken to the extent that a portion of the lens is missing and/or separated.
Permitting light from the bulb to emit through the crack or break.
h.

Lamp lenses repaired with repair tape or repair kit.

i.

Lamps are not of equal intensity.

j.

Any lamp assembly is cracked allowing water to enter or lamp assembly contains standing water.

k.
Vehicles that are equipped and lighted by a red bulb will be rejected. (There are no red bulbs
currently approved for use on vehicles.

4.20.17

Exhaust Emissions System

The owner or operator of any new motor vehicle or new motor vehicle engine beginning with the model year 1968
equipped with an exhaust emission system shall maintain the exhaust emission system in good operable condition andshall use it at all time that the motor vehicle or motor vehicle engine is operated. The owner or operator of the motor
vehicle or motor vehicle engine shall not remove or intentionally make inoperable with the State of Texas the exhaustemissions system or any part thereof, except where the purpose of removal of the exhaust emissions system or part
thereof is to install another exhaust emission system or part thereof, which is intended to be equally effective in reducing
atmospheric emissions from the vehicle or engine.
The exhaust emission system was installed by manufacturers of motor vehicles beginning with model year 1968. The
inspection of the exhaust emissions system will apply only to those vehicles that are equipped with such a system. The
following exhaust emissions systems will be inspected if installed as original equipment by the manufacturer:
thermostatic air cleaner, exhaust gas recirculation system, positive crankcase ventilation system, air injection system,
evaporative emissions system, and/or catalytic converter.
If installed as original equipment by the manufacturer, the catalytic converter will be considered a part of the exhaustemission system on all 1984 and later model vehicles. It will be inspected as a part of the exhaust system on prior to1984 model vehicles. Some diesel engines re equipped from the manufacturer with catalytic converters. The catalytic
converters on diesel-powered motor vehicles will be inspected for presence and leaks only.
The inspection of the exhaust emission system shall not apply to motor vehicles altered and modified to use only a fuelother than gasoline (e.g. compressed natural gas – CNG, liquefied petroleum gas – LPG). This exemption does notinclude diesel-powered motor vehicles. A diesel engine is neither altered not modified to use a fuel other thangasoline. A diesel powered motor vehicle with a diesel exhaust fluid system, exhaust gas recirculation system,
catalytic converter, etc… shall have those items inspected for presence and leaks only.

Vehicles that are originally manufactured with a Thermostatic Air Cleaner (TAC) System are required to have a closedtype design air filter system. Vehicles that are not originally equipped with a Thermostatic Air Cleaner (TAC) System
may have an aftermarket open- type air filter intake system installed. This type of system is not an item of inspection.

1. Inspection Procedure:
Examine visually.

2. Inspect for and reject if:a.

The exhaust emission system has been removed.

b.

The exhaust emissions system has been disconnected.

c.

The plumbing or hoses are loose, broken, leaking or improperly routed.

d.

Air pump (air injection-type) belt is loose, removed, excessively cracked, frayed or has pieces missing.

e.

The exhaust emission system has been altered in any manner to make it ineffective.

f.

The catalytic converter has been removed, leaking, or disconnected on a 1984 or later model vehicle.

3. Gas Cap Testing
Every gasoline-powered vehicle from 2-24 model years old will be checked for presence of and by a Department
approve “Gas Cap Testing Device” to determine if the gas cap is missing or defective. The following vehicles are
exempt:a.

Slow-moving vehicles.

b.

Motorcycles.

c.

Vehicles operated exclusively by a fuel other than gasoline.

d.

Vehicles newer than 2 years old and older than 24 years old.

e.

Vehicles manufactured with a cap-less fuel system.

4. Inspector Procedurea.

Conduct daily calibration check of gas cap testing device.

b.

Check for presence (all gas caps must be checked).

c.

Check for correct type of gas cap(s).

d.

Remove gas cap(s) and test using an approved testing device. (Gas cap present but not testable
will not be cause for rejection).

e.

Any gas cap(s) failing the initial test will be tested a second time to verify failure.

5. Inspect for and reject if:a.

Vehicle not equipped with required gas cap(s).

b.

Vehicle not equipped with proper type of gas cap(s).

c.

4.20.18

Gas cap(s) fails both tests.

Exhaust System

Every motor vehicle shall at all time be equipped with a muffler in good working order and in constant operation. The
exhaust system included the exhaust manifolds, gaskets, exhaust pipes, catalytic converters, mufflers, resonators,
tailpipes, hanger, and supporting hardware.
Muffler defined: Muffler is a device consisting of a series of chamber or baffle plates or other mechanical design forthe purpose of receiving exhaust gas from an internal combustion engine. On vehicles manufactured or equipped with amuffler and a turbo, the muffler must be present and in good working order.
Motor vehicle cannot be equipped with a muffler which is perforated or which was perforated and has been repaired,wither by a muffler repair jacket or by patching or in any other way. In those cases where a muffler is perforated at thetime of an inspection or has been perforated and has been repaired previous to the inspection, the muffler must be
replaced or the vehicle rejected.
Some pickups are equipped with a camper or hard shell cover and are sometimes used for the transportation ofpassengers. The tailpipe should discharge the exhaust at the rear or sides. This truck modification will be considered asa passenger compartment.
The entire structure of a passenger vehicle or a motor home-type vehicle is considered a passenger compartment. The
cab only of other truck-type vehicle is considered passenger or luggage compartment.
If the vehicle is equipped with lake pipes or similar device, such pipes or devices must be securely plated and bolted
or capped.
Dual exhaust systems may be modified to single exhaust systems and single exhaust systems to dual exhaust systems
provided the modification does not violate requirements concerning exhaust emission systems.
The catalytic converter will be considered as a part of the exhaust system on all vehicles prior to 1984 year model andwill be inspected only visually (if present) for leakage. On 1984 and later model light truck and passenger vehicle, thecatalytic converter will be checked for presence and leakage. Flexible tubing which meets the requirements listed
below may be used anywhere in the exhaust system.
Inspection of exhaust systems covers the discharge of exhaust fumes and is not concerned with the noise level.

1. Inspection Procedure:
The exhaust system shall be examined visually while the engine is running to determine efficiency of the system.

2. Inspect for and reject if:a.

Vehicle is not equipped with a muffler.

Any joint is loose or leaking, including manifolds. Does not include minor leakage at exhaustb.
control valve (manifold damper or hear riser valve).

c.

Manifold is cracked or broken causing leakage.

d.

Holes, leaking seams, or patches on the muffler, resonators, exhaust pipe, tailpipe, or catalytic converter.

e.
Exhaust system is not secured to the vehicle by mounting bracket designed for exhaust systems(wire, bailing wire, wire clothes hangers, wire rope, or similar material is not acceptable.

f.

Any brackets are loose, broken, or missing.

g.

There is excessive vibration of exhaust line.

h.

Any part of the exhaust system passes through the passenger compartment.

The tailpipe is broken, pinched, or eroded off to the extent to allow exhaust fumes to penetrate intoi.
the interior of the passenger compartment.

j.

vehicle.

The tailpipe fails to discharge exhaust from the rear of side or top of the passenger compartment of thek.
Holes in the exhaust system made by the manufacturer for drainage are not cause for rejection. The
tailpipe must direct the exhaust fumes out from under the passenger compartment.
l.
On pickups not equipped with a camper or hard shell cover, holes or leaks in the tailpipe extending
beyond the passenger compartment will not be cause for rejection.
4.20.19

Head Lamps

1. Motor Vehicles. Every motor vehicle shall be equipped with at least two head lamps, at least one on eachside of the front of the motor vehicle, which head lamps shall comply with the requirements and limitation, set forthin these regulations.
a.

Every head lamp upon every motor vehicle shall be located at a height of nor more than 54 inches nor
less than 24 inches to be measured from the center of such lamp to the level ground upon which the vehicle
stands when such vehicle is without a load.

2. Autocycles, Motorcycles, Motor-Driven Cycles Mopeds.
Every autocycle, motorcycle, motor-driven cycle, and moped shall be equipped with at least one and not more than twohead lamps which shall comply with the requirements and limitation of these regulation.

a.

Every head lamp upon every autocycle, motorcycle, motor-driven cycle, and moped shall be located ata height of not more than 54 inched not less than 24 inches to be measured from the center of such lamp thelevel ground upon which the vehicle stands when such vehicle is without a load. The head lamp on a motordriven cycle or moped may be a single beam lamp.

3. General Provisions.
All motor vehicles including autocycles and motorcycles sold new after January 1, 1948, other than motor-driven
cycles (motor scooters and motorbikes), must be equipped with multiple beam head lamps. Single beam headlamps will be permitted on those vehicles sold new prior to January 2, 1948, and on all motor- driven cycles (motor
scooters, motorbikes, and mopeds).
There shall be an uppermost distribution of light, or composite beam, so aimed and of such intensity as to reveal
persons and vehicles at a distance of a least 450 feet ahead for all conditions of loading (motorcycles, motor- driven
cycles, and mopeds at a distance of at least 300 feet).
There shall be a lowermost distribution of light, or composite beam, so aimed and of sufficient intensity to reveal
persons and vehicles at a distance of at least 150 feet ahead.

a.

Single beam head lamp:

A head lamp which provides only one fixed beam, which is not adjustable from the driver’s seat (usually onmotor-driven cycles and mopeds only).

b.

Multiple beam head lamp:

A head lamp which provides more than one beam, which may be selected as required from the driver’s seat.

c.

Dual head lamp system:

Those vehicles using the dual for four head lamps system must be equipped with a combination of a #1 and a#2 type head lamp on each side of the vehicle. The use of any other type of lamp in those sockets is illegal
and does not meet the inspection requirements for head lamps.

d.

Other lamps:

Fog lamps, auxiliary passing lamps, auxiliary driving lamps, backup lamps, and parking lamps are notrequired to be inspected.

4. Headlight Identification:a.

Sealed Beam Lamps: Glass headlamps whether round or rectangular identified by the #1 or #2
indicating the number of filaments in the head lamp. A one piece unit with a non-replaceable inner bulb.

b.

Composite Head Lamps: Consisting of a lens (usually contoured to the grill and fenders of thevehicle), a reflector, and one or two halogen replaceable bulbs marked DOT or SAE on the lamp
housing.

c.

Projection Head Lamps: Consist of a lens (usually contoured to the grill and fenders of thevehicle), a reflector, and on bulb with a projection lens.

d.

High Intensity Discharge Head Lamps (HID): Produce light with an electric arc rather than aglowing filament. Aftermarket HID bulbs installed in halogen composite head lamps are illegal.

e.

Head lamps approved for use on motorcycles and motor-driven cycles cannot be used on an
automobile or truck and vice versa.

f.

On motorcycles, motor-driven cycles, and mopeds without batteries, the engine should be run athigh idle speed to observe operation of the head lamp.

5. Preparation for Head Lamp Inspection:
Clean head lamp lenses, if necessary.

6. Sealed Beam Inspection Procedure:
Check operation and condition visually.

7. Sealed Beam head lamps will be inspected for and reject if:a.

Lamp or lamp assembly is not securely fastened to the vehicle. Lamp can be easily moved by hand.

b.

Lamp is improperly connected and does not light the proper filament for different switch positions.

c.

Lamp lens is cracked, broken, discolored, or missing.

d.

Lamp is not of a type meeting Department or DOT or SAE standards.

e.
Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting, or poor
electrical connections. Wiring is dangling or connections are loose

f.
Lamp lens is rotated, upside down, canted, or is marked “Right,” “Left,” #1 or #2 and not
appropriately installed.
g.

Lamp fails to function properly in any manner, such as any filament in a head lamp fails to burn.

h.

Lamp has dirt, any contamination, discoloration, or moisture on the inside.

i.

Lamp switch or dimmer switch does not operate properly and is not convenient for the driver.

j.
Foreign material placed on head lamp lens, such as shields, half of lens, paint, tape, tinting(other than clear), that interferes with the light beam of the lamp.
Headlamp is covered by any lens or cover located in front of the headlamp which is any shade ork.
color other than headlamp which is any shade of color other than clear.

l.

Vehicle is not equipped with head lamps as required or lamp is missing.

m.

Lens is other than clear.

n.

Lamp is mounted on vehicle more than or less than prescribed mounting heights.

o.

Headlamps are not of equal intensity.

p.
There is physical damage that would obviously cause a headlight beam to fail to illuminate
the roadway ahead of the vehicle sufficiently.
q.
8.

Retractable lamps: Must fully open and lock in a rigid position.

Projection Head Lamp Inspection Procedure:

Check operation and condition visually.
9.

Projection Head Lamps will be inspected for and rejected if:a.

Lamp or lamp assembly is not securely fastened to the vehicle. Lamp can be easily moved by hand.

b.

Lamp is improperly connected and does not light the proper filament for different switch positions.

c.

Lamp lens is broken, discolored, or missing (Exception: Composite headlamps will not be rejected
for being cracked unless the reflective material inside the lamp assembly is discolored or deteriorated).

d.

Lamp is not of a type meeting Department or DOT or SAE standards.

e.

Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting, or poor
electrical connections. Wiring is dangling or connections are loose.

f.

Lamp lens is rotated, upside down, canted.

g.

Lamp fails to function properly in any manner, such as any filament in a head lamp fails to burn.

h.

Lamp has dirt, standing water, or discoloration inside.

i.

Lamp switch or dimmer switch does not operate properly and is not convenient for the driver.

j.

Foreign material placed on head lamp lens, such as shields, half of lens, paint, tape, tinting (other thanclear, that interferes with the light beam of the lamp.

k.

Head lamp is covered by any lens or cover located in front of the head lamp which is any shade orcolor other than clear.

l.

Vehicle is not equipped with head lamps as required or lamp is missing.

m.

Lens is other than clear.

n.

Headlamps are not of equal intensity.

o.

Lamp is mounted on vehicle more than or less than prescribed mounting heights.

p.

There is physical damage that would obviously cause a headlight beam to fail to illuminate theroadway ahead of the vehicle sufficiently.

q.

Retractable lamps: Must fully open and lock in a rigid position.

10. High Intensity Discharge Head Lamp Inspection Procedure.
Check operation and condition visually.
11. High Intensity discharge Head Lamps will be inspected for and rejected if:a.

Lamp or lamp assembly is not securely fastened to the vehicle. Lamp can be easily moved by hand.

b.

Lamp is improperly connected and does not light the proper filament for different switch positions.

c.

Lamp lens is broken, discolored, or missing (Exception: Projection headlamps will not be rejected
for being cracked unless the reflective material inside the lamp assembly is discolored or deteriorated).

d.

Lamp is not of a type meeting Department or DOT or SAE standards.

e.

Wiring insulation is worn, rubbed bare, or shows any evidence of burning, shortcircuiting, or poor electrical connections. Wiring is dangling or connections are loose.

f.

Lamp lens is rotated, upside down, cantedg.

Lamp fails to function properly in any manner.

h.

Lamp has dirt, standing water, or discoloration insidei.

Lamp switch or dimmer switch does not operate properly and is not convenient for the driver.

j.

Foreign material placed on head lamp lens, such as shields, half of lens, paint, tape, tinting(other than clear), that interferes with the light beam of the lamp.

k.

Head lamp is covered by any lens or cover located in front of the head lamp which is any shadeor color other than clear.

l.

Vehicle is not equipped with head lamps as required or lamp is missing.

m.

Lens is other than clear.

n.

Headlamps are not of equal intensity.

o.

Lamp is mounted on vehicle more than or less than prescribed mounting heights.

p.

There is physical damage that would obviously cause a headlight beam to fail to illuminate theroadway ahead of the vehicle sufficiently.

q.
4.20.20Retractable lamps: Must fully open and lock in a rigid position.

Horn

Every motor vehicle shall be equipped with a horn (electric or air) in good working order and capable of emitting asound audible for a distance of 200 feet or more, but no horn shall emit an unreasonably loud or harsh sound or awhistle.
Bulb or hand-operated horn is acceptable if original vehicle equipment.

1. Inspection Procedurea.

Sound the horn.

b.

Check actuating device.

c.

Examine wiring – mounting.

2. Inspect for and reject if:a.

Vehicle is not equipped with a horn.

b.

Horn or horn switch is not securely fastened.

c.
Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting,or poor connections.

4.20.21d.

Horn switch not readily accessible to vehicle operator.

e.

Horn is actuated by grounding two bare wires or similar method.

f.

Sound is not audible under normal conditions for 200 feet.

g.

Horn emits an unusually loud or harsh sound or whistle.

h.

Operation of the horn interferes with the operation of any other circuit.

i.

Horn switch missing or inoperative

License Plate Lamp

Either a tail lamp or a separate lamp shall be so constructed and placed as to illuminate with a white light the rearregistration plate and render it clearly legible for a distance of 50 feet to the rear. Any such lamp shall be so wired as
to be lighted when the head lamps or auxiliary driving lamps are lighted.
On vehicles such as truck-tractors which require no rear registration plate, a license plate lamp would not be required.
If two license plates are issued, a license plate lamp is required.
Do not reject a vehicle because the rear registration plate is obstructed.
1.

Inspection Procedure

Check operation and condition visually.

2.

Inspect for and reject if:a.

Lamp is not present, steady burning, or operational. LED lights have less than 50% of diodes illuminated.

b.

Lamp is not securely mounted to the vehicle.

c.

Lamp is not placed to illuminate with a white light the rear registration plate. (Only one lamp is required.)d.
Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting, or poor
electrical connections.
e.

Lamp is not wired so as to be lighted when head lamps or auxiliary driving lamps are lighted.

f.

Lamp emits a glaring light to the rear.

g.
Lens is missing, cracked, or broken to the extent that a portion of the lens is missing and/or
separated, permitting light from the bulb to emit through the crack or break.

4.20.22h.

Lamp lens has been repaired with repair tape or repair kit.

i.

Lamp assembly is cracked allowing water to enter or the lamp assembly contains standing water.

j.

Lamp does not meet the visibility requirements.

MirrorEvery motor vehicle shall be equipped with a mirror so located as to reflect to the driver a view of the highway for a
distance of at least 200 feet to the rear of such motor vehicle.

1. Inspection Procedurea.

Inspect only one mirror.

b.

If the vehicle is equipped with more than one mirror, only one, either inside or outside, needs
to meet all requirements.

2. Exterior Rearview Mirror: From the driver’s position, visually inspect exterior mirror for a clear andreasonably unobstructed view to the rear. Look for correct location and stable mounting.
3. Interior Rearview Mirror: From the driver’s position, visually inspect interior mirror for proper
mounting, location, cracks, sharp edges, and ease of adjustment.
4. Inspect for and reject if:a.

Mirror does not provide the driver with a clear view to the rear of 200 feet.

b.

Vehicle is not equipped with at least one mirror.

c.

Mirror creates interference with driver’s forward vision.

d.

Reflective surface of mirror is cracked, broken, peeled, tarnished, or has sharp edges.

e.

Mirror is not mounted securely to prevent swing or excessive vibration, unless the vehicle isequipped with another mirror which meets requirements.

f.

Vehicles with no visibility through the rear window will require two outside mirrors, one oneach side of the vehicle.

4.20.23

Reflectors (Rear)

Every motor vehicle, trailer, semitrailer, and pole trailer shall carry on the rear, either as a part of the tail lamps or
separately, two or more red reflectors. Autocycles, motorcycles, motor- driven cycles, and mopeds shall havemounted on the rear, either as a part of the tail lamp or separately, at least one red reflector.
Every reflector upon any vehicle shall be of such size and characteristics and so mounted as to be visible at night fromall distances within 600 feet to 100 feet from such vehicle when directly in front of the lawful lower beams of headlamps, except that reflectors on passenger cars, autocycles, motorcycles, and motor-driven cycles manufactured or
assembled prior to January 1, 1972, shall be visible at night from all distances within 350 feet to 100 feet when directlyin front of lawful upper beams of the head lamps.
Reflectors on all vehicles shall be mounted at a height of not less than 15 inches or more than 60 inches measured fromthe center of such reflector to the level ground upon which the vehicle stands when the vehicle is without a load. If thehighest part of the permanent structure of the vehicle is less than the height required, the reflector shall be mounted ashigh as that part of the permanent structure will permit.
Rear reflectors on a vehicle shall reflect a red color.
Red reflectors required on the rear of a vehicle may be incorporated with the tail lamp assembly.
Required rear reflectors shall be mounted with one on each side of the center of the vehicle.
Rear reflectors on pole trailers may be mounted on each side of the bolster or load.

1. Inspection Procedure.
Check condition and mounting.

2. Inspect for and reject if:

4.20.24a.

Reflector is not present.

b.

Reflector is not of red color.

c.

Reflector is not properly and/or securely mounted to the vehicle.

d.

Reflector is cracked to the extent that the reflecting ability is impaired.

e.

Reflector is discolored, deteriorated, or painted.

f.

Visibility distance is not as required.

g.

Requirements shown on lighting diagram are not met. Reflector height requirements are not met.

Reflectors (Side)

Refer to Reference Section for lighting diagrams.

1. Required on all:Buses 80 inches or more in overall width. Trucks 80 inches or more in overall width. Trailers and semitrailers 80

inches or more in overall width.

a.

Every required reflector upon any of the above named commercial vehicles shall be of such size andcharacteristics and so maintained as to be readily visible at nighttime from all distances within 600 feet to
100 feet from the vehicle when directly in front of the lawful lower beams of head lamps, except that thevisibility for reflectors on vehicles manufactured or assembled prior to January 1, 1972, shall be measured
in front of lawful upper beams of head lamps.

b.

Reflectors on vehicles shall be either mounted at a height of not less than 15 inches norhigher than 60 inches above the ground on which the vehicle stands.

c.

If the highest part of the permanent structure of the vehicle is less than the height required, thereflector shall be mounted as high as that part of the permanent structure will permit.

d.

Reflectors mounted on the sides near the front of a vehicle shall reflect an amber color.

e.

Reflectors mounted on the sides near the rear of a vehicle shall reflect a red color.

f.

On buses and trucks 80 inches or more in overall width and trailers and semitrailers 80 inches
or more in overall width: two reflectors on each side - one at or near the front and one at or near the
rear.

g.

On trailers and semitrailers 30 feet or more in overall length - one amber reflector on each side centrally located with respect to the length of the vehicle.

h.

On pole trailers - one amber reflector - at or near the front of the load (if loaded.)

2. Inspection Procedure
Check condition and mounting.

3. Inspect for and reject if:

4.20.25a.

Reflectors are not present.

b.

Reflectors are not of the required color for the location on the vehicle.

c.

Reflectors are not properly and/or securely mounted to the vehicle.

d.

Reflector is cracked to the extent that the reflecting ability is impaired.

e.

Reflectors are discolored, deteriorated, or painted.

f.

Requirements shown on lighting diagram are not met. Reflector height requirements are not met.

g.

Visibility distance is not as required.

Safety Guards or Flaps

Safety Guards or Flaps Requirement and Inspection.
Required on all:
Trucks, Light Trucks - Trailers and Semitrailers (In combination with a towing vehicle). If the rearmost axle of thevehicle or (combination) has at least four tires or more, or at least two super single tires. A super single tire is a wide

based single tire that may be used in place of two standard tires on the same axle.
Safety Guards are Flaps are Not Required On:

1. Buses
2. Motor homes
3. Pole trailers
4. Truck-tractors
Safety guards or flaps shall be located and suspended behind the rearmost wheels of such vehicle or if in combination
behind the rearmost wheels of such combination to within twelve (12) inches of the surface of the roadway. Safety
guards or flaps shall be at least as wide as the tires they are protecting.
Safety guards or flaps shall be of metal, rubber, rubberized material, or other substantial material, capable of remaining in placeback of rear wheels by their own weight while the said vehicle is being operated. The construction of safety guards or flaps
will be such that they will remain in proper place back of rear wheels and will be rigid enough to prevent slush, mud, or gravel
being transmitted from the vehicle’s rear wheels to the windshield of the following vehicle.
When trailers and semitrailers are presented for inspection in combination, each trailer or semitrailer will be considereda separate vehicle and safety guards or flaps will be required on the rearmost axle of each trailer or semitrailer.
1.

Inspection Procedure

Check for presence and condition.

2. Inspect for and reject if:

4.20.26a.

Safety guard or flap is not present.

b.

Safety guard or flap is not securely mounted.

c.

Safety guard or flap is not as wide as the tires that it is protecting.

d.

Safety guard or flap is split or torn to the extent that it is ineffective.

e.

The bottom edge of safety guard or flap is more than twelve (12) inches from the surface of the roadway.

Seat Belts

Front seat belts are required on every motor vehicle in which front seat belt anchorages were a part of the
manufacturer’s original equipment on the vehicle.
Anchorages defined: A seat belt anchorage consists of a threaded hole in suitable structure to receive the seat belt
attachment fittings or a circular anchor which is welded to the vehicle chassis. Self-threading bolts are inserted into
the anchor to form the complete seat belt anchorage assembly.
1.

Inspection Procedure

Inspect front lap seat belts for frayed, split, or torn webbing; malfunctioning buckles; and loose or damaged anchorages
or floor pan. Vehicles originally equipped with automatic seat belts (shoulder belts) without front lap seat belts will
have the automatic belts inspected. Front lap belts only will be inspected in all other vehicles. The ignition seat beltinterlock system is not an item of inspection.

2. Inspect for and reject if:

4.20.27

a.

Front lap seat belts are required and not present.

b.

Seat belt webbing is frayed, split, or torn.

c.

Belt anchorages or attachment fittings are loose, badly corroded, missing, or not fastened to belt.

d.

Belt buckles loose or inoperative.

e.

All seat belt anchor bolts are not securely fastened to floor or are missing.

f.

Pelvic restraint is not present.

g.

Seat belt will not adjust to allow proper fit.

Side Marker Lamps

Refer to Reference Section for lighting diagrams.

1. Required on all:Buses 80 inches or more in overall width. Trucks 80 inches or more in overall width. Trailers and semitrailers 80
inches or more in overall width. Trailers and semitrailers 30 feet or more in overall length. Pole trailers.

a.

Side marker lamps shall, so far as is practicable, be mounted on the permanent structure of thevehicle in such a manner as to indicate the length of the vehicle.

b.

Side marker lamps and clearance lamps may be mounted in combination, provided illumination is
given as required by law.

c.

Side marker lamps mounted on the front

or on the sides near the front of a vehicle shall display an amber color.

d.

Side marker lamps mounted on the rear or on the sides near the rear of a vehicle shall display a red color.

e.

Side marker lamps shall be visible under normal atmospheric conditions at a distance between 500
feet and 50 feet from the vehicle on which mounted.

f.

On buses and trucks 80 inches or more in overall width and trailers and semitrailers 80 inches
or more in overall width:• Two side marker lamps, one on each side, one at or near the front and one at or near the rear.

g.

All trailers and semitrailers 30 feet or more in overall length are required to have mounted
centrally located with respect to the length of the vehicle:•h.

On each side, one amber side marker.

On pole trailers:• On each side, one amber side marker lamp at or near the front of the load (if loaded).
• On the rearmost support for the load, one combination marker lamp showing amber to the front
and red to the rear and side, or cluster of required color lamps.

2. Inspection Procedure
Check operation and condition visually.

3. Inspect for and reject if:a.

Lamps are not present.

b.

Lamps are not securely mounted and properly located.

c.

Lamps do not emit required color; lens or bulb painted; or not steady burning.

Visibility requirements are not met. LED lights have less than 50% of diodes illuminated.

d.

Lenses are discolored or missing.

e.

Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting, or poor
electrical connections.

f.

Lens is cracked or broken to the extent that a portion of the lens is missing and/or separated,
permitting light from the bulb to emit through the crack or break.

g.

Lights are not of equal intensity.

h.

Lamp lenses repaired with repair tape or repair kit.

i.

Requirements shown on lighting diagram are not met. Side marker lamp height requirements are not met.

Vehicles that are equipped and lighted by a red bulb will be rejected. (There are no red bulbs currently
approved for use on vehicles.)4.20.28

Steering

The steering system of the vehicle must be inspected to determine if excessive wear and/or maladjustment of thesteering linkage and/or steering gear exists. Wear and adjustment of the steering system will be checked by measuringlash. Vehicle must be on a dry surface.
Lash defined: Lash is the condition in which the steering control can be turned through some part of a revolution
without front wheel motion. The wheels should be loaded and positioned straight ahead.
Jamming defined: Jamming is any obstruction to the turning of the steering control caused by interference between
some components of the steering system. The obstruction would include tires too large or damaged fenders that wouldinterfere with a full right or left turn.
1.

Inspection Procedure

Lash or Free Play: With steering axle tires in straight ahead position, turn steering wheel until the turning motion
can be observed at the steering axle tires. Measure lash (See Chart Below). On vehicles equipped with power
steering, the fluid level, belt tension and belt condition must be checked for compliance before starting the engine tocheck for proper operation of the steering. On vehicles equipped with power steering, the engine must be runningwhen measuring steering lash.

2. Inspect for and reject if:
a. Steering Lash.

Steering Wheel
Diameter

Manual Steering Power Steering
SystemSystem14”or less.............2”......................... 3”16”.......................2” ......................... 4”18”........................2” ....................... ..4-3/4”20”........................2” ......................... 5”22”........................2-3/4” ................. ..5-3/4”b.

It is impossible to turn the steering wheel from full right to full left without binding or jammingother than at wheel stops.

c.

Steering mechanism is not firmly attached and free of frame cracks or missing bolts.

d.

Modification of the steering system so as to affect the proper steering of the vehicle or steering
wheel has been modified or replaced with one that is noticeably smaller than original factoryequipment.

e.

Any excessively worn or broken parts in the steering system.

f.

Visible leaks in power steering unit or hoses.

g.

Power steering belt is excessively cracked, frayed, or has pieces missing or tension is not adequate.
Serpentine belts are not to be rejected merely for cracks in the ribs.

Fluid in power steering unit is below manufacturer’s recommended level. Do not overfill.
On motorcycles and motor-driven cycles, handlebars or steering head is bent, loose, broken or damaged so as tocause unsafe condition in steering.

h.

On vehicles equipped with flexible couplings, or energyabsorbing steering columns, when it is obvious through a visualinspection of the vehicle that the column has been damaged and is in an
unsafe condition, it should be rejected.
Tilt steering wheels must lock into position. Steering wheel must be securely mounted to the steering shaft.

4.20.29

Stop Lamps.

Every motor vehicle, trailer, semitrailer, and pole trailer shall be equipped with two or more stop lamps. Passenger cars
and trucks manufactured or assembled prior to the model year 1960 shall be equipped with at least one stop lamp. At
least one stop lamp is required on all autocycles, motorcycles, and motor-driven cycles.
A stop lamp must emit a steady burning red or amber light, or any shade of color between red and amber, be spaced as
far apart as practicable and be visible from a distance of not less than 300 feet to the rear in normal sunlight. The stop
lamp shall be actuated upon application of the service brake and which may, but need not, be incorporated with one ormore other rear lamps.
Stop lamp lens must be of a type meeting Department of Public Safety standards.
On vehicles equipped with two stops lamps, the stop lamps shall be mounted on the same level and as widely spaced
laterally as practicable.
1.

Inspection Procedure
Check operation and condition visually.

2. Inspect for and reject if:a.
Required lamp or lamps are not present.
b.

Lamps are not properly located or securely mounted to the vehicle.

c.
Lamp does not emit a steady burning red or amber light which is actuated on application of the service(foot) brake.
d.
Lamp is not visible from a minimum distance of 300 feet to the rear of the vehicle to which it is
attached. LED lights have less than 50% of the diodes illuminated. Lamp height requirements are not met(Refer to Lighting Diagram).
e.

Lamp lens is painted, missing, discolored, or does not fit properly.

f.

Wiring is shoddy or electrical connections are poor.

g.

Lamp projects a glaring or a dazzling light.

h.

Lamp is not mounted on rear of vehicle.

i.
Lens is cracked or broken to the extent that a portion of the lens is missing and/or separated,
permitting light from the bulb to emit through the crack or break.
j.

Lamps which are not of equal intensity.

k.

Lamp lenses repaired with repair tape or repair kit.

l.

Any lamp assembly is cracked allowing water to enter or the lamp assembly contains standing water.

m.

Must be steady burning.

n.
Vehicles that are equipped with and lighted by a red bulb will be rejected. (There are no
red bulbs currently approved for use on vehicles.)Center High Mounted Stop Lamp.
High-mounted stop lamp means a lamp mounted high and possibly forward of the tail, stop, and rear turn signal lamps
intended to give a steady stop warning.
All passenger cars manufactured on or after September 1, 1985 shall be equipped with a red center, high mounted
stop lamp.
All multipurpose passenger vehicles, trucks and buses less than 80 inches wide with a GVWR of 10,000 pounds or
less, manufactured on or after September 1, 1993, shall be equipped with a red center, high mounted stop lamp. Any
truck that has a camper shell that covers the red center high mounted stop lamp shall not be rejected. However, if thecamper shell was manufactured with a red center, high mounted stop lamp it must be operable at the time ofinspection. The red center, high mounted stop lamp, if required, will not be a substitute for any other required stop
lamp.
Vehicles that are equipped from the manufacturer with approved lenses which are clear and lighted by L.E.D. lights
will pass state inspection.
1.

Inspection ProcedureCheck operation and condition visually.

2. Inspect for and reject ifa.

Required lamp is not present.

b.

Lamp is not properly located or securely mounted to the vehicle.

Lamp does not emit a steady burning red light which is actuated on application of the service (foot) brake.

c.

Lamp is not visible from a minimum distance of 300 feet to the rear of the vehicle towhich it is attached. LED lights have less than 50% of the diodes illuminated. Lamp heightrequirements are not met (Refer to Lighting Diagram).

d.

Lamp lens is painted, missing, discolored, does not fit properly or has any
aftermarket tint applied over the center high mount stop lamp.

e.

Wiring is shoddy or electrical connections are poor.

f.

Lamp projects a glaring or a dazzling light.

g.

Lamp is not mounted on rear of vehicle.

i.

Lens is cracked or broken to the extent that a portion of the lens is missing and/or
separated, permitting light from the bulb to emit through the crack or break.

j.

Lamp which is not of equal intensity.

k.

Lamp lens repaired with repair tape or repair kit.

l.

Any lamp assembly is cracked allowing water to enter or the lamp assembly contains
standing water.

m.

Must be steadily burning.

n.

Vehicles that are equipped with and lighted by a red bulb will be rejected. (There
are no red bulbs currently approved for use on vehicles.)4.20.30

Tail Lamps

Every motor vehicle, trailer, semitrailer, pole trailer, and any other vehicle which is being drawn at the end of a
combination of vehicles shall be equipped with at least two tail lamps mounted on the rear which, when lighted, shallemit a steadily burning red light plainly visible from a distance of 1,000 feet to the rear, except that passenger cars andtrucks manufactured or assembled prior to the model year 1960 shall have at least one tail lamp. On vehicles
equipped with more than one tail lamp, the tail lamps shall be mounted on the same level and as widely spaced
laterally as practicable.
Every tail lamp upon every vehicle shall be located at a height of not more than 72 inches nor less than 15 inches.
Tail lamps are used only to designate the rear of a vehicle.
Every tail lamp upon autocycles, motorcycles, motor-driven cycles, or mopeds shall be located at a height of not morethan 72 inches nor less than 20 inches. Tail lamp lens must be of a type meeting Department of Public Safety
standards.
At least two tail lamps are required on all motor vehicles, trailers, semitrailers, and pole trailers, except that at least
one tail lamp is required on autocycles, motorcycles, motor-driven cycles, and mopeds and all 1959 model year andearlier passenger cars and trucks.

Vehicles that are equipped from the manufacturer with approved lenses which are clear and lighted by L.E.D.
lights will pass state inspection.
Vehicles that are equipped with aftermarket lenses which are clear and lighted by a red bulb will be rejected. (There
are no red bulbs currently approved for use on vehicles.)1.

Inspection Procedure

Check operation and condition visually.

2. Inspect for and reject if:a.

Required lamp or lamps are not present.

b.

Lamp is not securely mounted to vehicle.

c.

Lamp does not emit a steady burning red light plainly visible 1,000 feet to the rear. LED
lights have less than 50% of the diodes illuminated.

d.

Lamp lens is painted, missing, discolored, does not fit properly, or is any color other than red or clear.

e.

Wiring is shoddy or electrical connections are poor.

f.

Lamp is not wired so as to be lighted when head lamps or auxiliary driving lamps are lighted

g.

Lamp is obstructed by any part of the body.

h.

Lamp does not emit a red color.

i.

Lamps are not mounted on the same level and as widely spaced laterally as practicable.
Lamp height requirements are not met.

j.

Lamps are not mounted on rear of vehicle.

k.

Lens is cracked or broken to the extent that a portion of the lens is missing and/or separated,
permitting light from the bulb to emit through the crack or break.

l.

Lamp lenses repaired with repair tape or repair kit.

m.

Lamps are not of equal intensity.

n.

Is not steady burning.

o.

Any lamp assembly is cracked allowing water to enter or the lamp assembly contains standing water.

p.

Vehicles that are equipped with a red bulb will be rejected. (There are no red bulbs currently
approved for use on vehicles.)4.20.31

Tires

Every motor vehicle (including autocycles, motorcycles and motor-driven cycles, trailer, semitrailer, pole trailer, andmobile home) registered in this state and operated on the streets and highways of this state and required to beinspected shall be equipped with tires in proper and safe condition.

Definition of terms:
Rim: A metal support for a tire or a tire and tube assembly upon which the tire beads are seated.
Bead: The part of the tire made of high tensile steel wires, wrapped and reinforced by the ply cords, which isshaped to fit the rim.
Bead Separation: A breakdown of bond between components in the bead area.
Sidewall: The portion of the tire between the tread and the bead.
Cord: Textile, steel wire strands forming the plies or other structure of the tire.
Cord Separation: Cord parting away from adjacent rubber compounds.
Ply: Layer of rubber coated parallel cords forming the tire body.
Ply Separation: A parting of rubber compound between adjacent plies.
Tread: The portion of the tire that comes in contact with the road.
Tread Separation: The pulling away of the tread from the tire carcass.
Tread Rib: A tread section running circumferentially around a tire.
Groove: The space between two adjacent tread ribs.
Tread Depth: The amount of tread design on the tire. Tread depth includes both original, retread, and recapped tread
design; and in respect to special mileage commercial tire design.
Regroovable Commercial Tire: A tire manufactured with an extra layer of rubber between the cord body and theoriginal tread design which extra layer is designed for the purpose of recutting or regrooving, and which tire is
specifically labeled as a regroovable tire.
Belt: A layer or layers made of fabric or other material, located under the tread area.
1.

Inspection Procedure

Tires should be inspected visually and the tread should be measured with a tread depth gauge calibrated in 32nds of aninch if it does not have tread wear indicators. Some tire manufacturers have placed tread wear indicators at 5/32nds ofan inch, do not reject tires so equipped unless the tread depth is less than 2/32nds of an inch when measured with anapproved tire gauge. No tire shall be passed to be in safe operating condition unless it meets the visual and tread
depth requirements set forth in these regulations.
Inspection of the spare tire is not required. All tires must appear to be properly inflated - even though a gauge checkis not required.
The tread depth requirement of these regulations shall apply to both tires of each set of dual wheels. The otherrequirements will also apply to both tires in each set of dual wheels.
Dragster tires or racing slicks without sufficient tread or which have had all tread removed are not acceptable.

2. Inspect for and reject if:
a. Any tire with a localized worn spot that exposes the ply or cord through the tread.
b. Any tire with tread or sidewall cracks, cuts, or snags (as measured on the outside of the tire) in excess of
one inch in any direction and deep enough to expose the body cords.

c. Any tire which has any visible bumps, bulges, or knots apparently related to tread or sidewall separation or
partial failure of the tire structure, including bead area.
d. Any tire which has been regrooved or recut below the original groove depth, except special (regroovable)tires which have extra under tread rubber for this purpose (commercial vehicles only) and are identified assuch.
e. Any dual wheel assembly where the side of one tire is in contact with the other. (Any dual tires that contact
each other.)f. Any tire that is marked “Not for Highway Use,” “Farm Use Only,” “For Racing Purposes Only,” or withother use restrictions that would indicate the tire is not meant for highway use. This would include vehicles
using temporary spares, inflatables, or small high pressure spares.
g. Any tire which has been repaired temporarily by the use of blowout patches and boots. Nail hole plugs orpatches are not cause for rejection.
h. Any tire without tread wear indicators worn so that less than 2/32 of an inch of tread design depth
remains when measured with a tread depth gauge at the lowest points in any two adjacent major
grooves in the center or middle of the tire.
i. Any tire with tread wear indicators worn so that the tread wear indicators contact the road in any two
adjacent major grooves in the center or middle of the tire.
Refer to Reference Section for further tire inspection procedures.
4.20.32

Turn Signal Lamps.

Every motor vehicle, trailer, semitrailer, and pole trailer shall be equipped with electrical turn signal lamps, except thatpassenger cars and trucks less than 80 inches in width and manufactured or assembled prior to the model year 1960
need not be equipped with electrical turn signal lamps.
If the bed, body, cab, load, and any other equipment on a vehicle or combination of vehicles exceeds 24 inches or moreto the left of the center of the top of the steering post in the same horizontal plane (that is, as high as the center of the
top of the steering post) or when the distance from the center of the top of the steering post to the rear limit of the bodyor load exceeds 14 feet, then turn signal lamps are required, even though a hand and arm signal can be seen and thevehicle was manufactured or assembled prior to model year 1960.
Vehicles equipped from the manufacturer with lenses are clear and lighted by L.E.D. bulbs will pass state inspection.
Required turn signal lamps must be visible to the front and to the rear of the vehicle.
1.

Electric turn signal lamp types:a.

Single-faced units.

b.

Double-faced units.

c.

Arrow-faced units.

d.

Kits designed to be used in conjunction with the parking light assembly.

2. Electric turn signal lamp flashers. All open- faced and arrow-type turn signal lamps must flash on
and off in order to clearly indicate an intention to turn.
a.
Turn signal lamps are required on those vehicles manufactured with a right-hand (steering
wheel) drive, regardless of model year.

b.
A single lamp (large double-faced unit) on each side of a truck-tractor, which is visible to thefront and rear, will suffice for turn signal lamps.
3. Turn signal lamp mounting. The lamps showing to the front shall be mounted on the same level and as
widely spaced laterally as practicable and, when signaling, shall emit a white or amber light or any shade oflight between white and amber.
a.
The lamps showing to the rear shall be mounted on the same level and as widely spaced
laterally as practicable and, when signaling, shall emit a red or amber light or any shade of color
between red and amber.
b.
Turn signal lamps on vehicles 80 inches or more in overall width shall be visible from a distanceof not less than 500 feet to the front and rear in normal sunlight. Turn signal lamps on vehicles less than
80 inches in overall width shall be visible from a distance of not less than 300 feet to the front and rear innormal sunlight.
c.

Turn signal lamps may, but need not, be incorporated in other lamps on the vehicle.

d.
Turn signal lamps shall indicate an intention to turn by flashing lamps showing to the front andrear of a vehicle. On a combination of vehicles, turn signal lamps shall indicate an intention to turn by
flashing lamps to that side of the vehicle or combination toward which the turn is to be made.

4.

e.

Motorcycles, motor-driven cycles, and mopeds are not required to be equipped with turn signal lamps.

f.

Semaphore or mechanical arm devices are not acceptable as turn signal lamps.

Inspection Procedure

Check operation and condition visually.
5.

Inspect for and reject if:a.

Lamps are required and not present.

b.
Lamp is not securely mounted or properly located on the vehicle. Lamp height requirements are
not being met (Check Lighting Diagram).
c.

Lamp is not of a type meeting Department standards.

d.

Lamp lens is discolored or missing.

e.
Wiring insulation is worn, rubbed bare, or shows any evidence of burning, short circuiting, or poor
electrical connections.
f.
Switch is not convenient to the driver or indicator light does not operate. Selector switch must lockin proper turn position, if required for the signal to operate, when applied but need not cancel
automatically.
g.
Signal shows any color other than white or amber to the front, or signal shows any color otherthan red or amber to the rear.
h.

Signal does not flash or is not operating properly.

i.
Signal is not clearly visible to the front and to the rear of the vehicle for the required distances.
LED lights have less than 50% of the diodes illuminated.

j.
Lens is cracked or broken to the extent that a portion of the lens is missing and/or separated,
permitting light from the bulb to emit through the crack or break.
k.

Lamps are not of equal intensity.

l.

Lamp lenses cannot be repaired with repair tape or repair kit.

m.

Any lamp assembly is cracked allowing water to enter or lamp assembly contains standing water.

n.
Vehicles that are equipped with clear aftermarket lenses lighted by a red bulb will be rejected(There are no red bulbs currently approved for use on vehicles).

4.20.33

Vehicle Identification Number, Motor, or Serial Number

Make an actual physical check of the motor block, frame, or body part where such number is located and record
through the electronic interface device. Station or certified inspector suspension can result from taking this number
from the old Vehicle Inspection Report, title, or registration receipt. The entire vehicle identification number must be
used. Do not reject a vehicle because it has no vehicle identification number or motor or serial number. Vehicles withaltered or removed vehicle identification numbers or motor or serial numbers should be reported to your Department
representative.
4.20.34

Wheel Assembly

The inspection of all wheels and rims will be visual. Spare wheels and rims will not be inspected.
Wheel covers or hubcaps may be removed from the vehicle if the certified inspector has probable cause or reason tobelieve that wheel or rim defects exist.
1.

Inspection Procedure

Examine visually.
2.

Inspect for and reject if:a.

Loose, missing, or damaged wheel studs, bolts, nuts, or lugs.

b.

Any part of the wheel is bent, cracked, rewelded, or damaged so as to affect safe operation of the vehicle.

c.
Wheel nuts, studs, and clamps which are loose, broken, missing, or mismatched. Adequate thread
engagement is imperative. Stud and nut threads on wheel lugs must engage completely through the entire
threaded portion of the nut.
d.
Rims and rings which are mismatched, bent, sprung, or otherwise damaged. Check forevidence of rim slippage - this is an indication of wear of loose nuts.
e.

Disc wheels with elongated bolts, holes, or cracks between hand holes or stud holes, or both.

f.

Cast wheels with cracks, evidence of wear in the clamp area, or both.

g.

Rims have defects or cracks to the extent that they impair the safe mounting and proper retention of tires.

h.

Any wheel cannot be securely fastened to the hub of the vehicle.

i.

On motorcycles and motor-driven cycles, any spokes are bent, loose, broken, or missing.

4.20.35

Window Tinting

All vehicles that have applied window coating, tinting, or sun screening on the windows must be inspected. Vehicles
with windows which cannot be raised or lowered for the inspection of window tint will require that the inspection beterminated.
1.

Inspect for and reject if:a.

Glass coating or sun screening devices on windshields:i.
Extends downward beyond the AS-1 line or more than five (5) inches from the top ofwindshield on vehicles without an AS-1 line. Measurements shall be taken from inside thewindshield; orii.

b.

Is red, blue, amber in color or is a reflective type.

Glass coating or sun screening devices on windows:i.
Windows immediately to the right and left of the driver, which open, have less than
25% light transmittance.
ii.
If one window is inspected and has more than 25% light transmittance and the otherwindow has window tinting which is obviously the same degree of sun screening, only the one
window needs to be inspected

2. Check tint meter calibration before rejecting vehicle.
Exemptions:a.
The following will not be considered as sun screening or glass coating devices:
i. Rearview mirror.
ii. Sun visors.
iii. Motor carrier destination signs.
iv. Rear window wipers and motors.
v. Trunk lid handle or hinge.
vi. Luggage racks
vii. A clear (un-tinted) UV film is allowed anywhere on the front windshield without a medical
exemption.
b.
Do not inspect glass coating on vehicles used to transport passengers on a regular basis for afee, (i.e., taxi, limousine, and buses).
c.
Do not inspect glass coating on a vehicle that is maintained by a law enforcement agency
and used for law enforcement purposes.
d.
Vehicles used by persons with medical permits. Drivers of these vehicles must present a letter ofauthorization from the Texas Department of Public Safety to gain this exemption.
e.
Multipurpose vehicles may be equipped with any non-reflective film on the side windows that is to
the rear of the driver. No label required. (Those motor vehicles designed to carry 10 or fewer persons constructed
either on a truck chassis or with special features for occasional off-road use.)

Medical Exemption Applicationa.
The medical exemption allows motorists to place a darker tint on the front side windows and theupper portion of the front windshield (top 5 inches or above the AS-1 line, whichever is less). The
exemption does not, however, allow a motorist to place a sun screening device on any portion of the front
windshield.
4.20.36

Windshield Wipers.

Every motor vehicle with a windshield must be equipped with a windshield wiper or wipers adequate for cleaning
rain, snow, or other moisture from the windshield; in good working order; and constructed so as to permit operationand control by the driver of the vehicle.
All motor vehicles which were originally equipped (manufactured) with one wiper, only one wiper is required; if
originally equipped (manufactured) with two or more wipers, all wipers will be required. Replacement of vacuumwith electric or electric with vacuum wipers is permissible. Vehicles presented for inspection without windshields will
not be required to have wipers. The windshield is not an item of inspection. Manually operated wipers are permissible
if original vehicle equipment.
1.

Inspection Procedure.

Inspect for satisfactory operation. If vacuum operated, engine must be idling and control full on. Inspect for proper
contact of blades with windshield. Raise arm away from windshield and release. Arm should return to original
position and wiper blade should contact the windshield firmly. The rear window is not considered a windshield andany wiper present on the rear window is not an item of inspection.

2. Inspect for and reject if:a.

Vehicle is not equipped with the number of wipers with which it was originally equipped.

b.

Wiper is inoperative, does not operate freely, or is improperly adjusted.

c.

Wiper blades have damaged, hardened, or badly worn rubber elements.

d.

The portion of the rubber element that contacts the windshield is torn more than one inch on one
end or is torn a total of one inch on both ends.

e.

Any part of the rubber element
is torn loose from the metal backing or
blade base.

f.

Metal parts of wiper blades or arms are damaged or come in contact with the windshield.

g.

Wiper is incapable of adequately cleaning the windshield.

h.

Wiper blades are not making proper contact with windshieldi.

Wiper controls are not operating

properly or are located beyond the driver’s reach.

j.

The rear window is not considered a windshield and any wiper present on the rear window is not
an item of inspection.

4.20.37

1.

Inspection Procedure
Check for presence and condition

2.

Inspect for and reject if:a.

License Plate(s) is issued for a different motor vehicle.

b.

License Plate(s) is fictitious.

c.
License Plate(s) has blurring or reflective matter that significantly impairs the readability of the name ofthe state in which the vehicle is registered or the letters or numbers of the license plate number at any time.
d.
License Plate(s) has an attached illuminated device or sticker, decal, emblem, or other insignia that is not
authorized by law and the license plate number or the name of the state in which the vehicle is registered.
e.

License Plate(s) has a coating, covering, protective substance, or other material that:i.

distorts angular visibility or detectability

ii.

alters or obscures one-half or more of the name of the state in which the vehicle is registered

iii.
plate

alters, covers, or obscures the letters or numbers of the license plate number or the color of the4.20.38 Rejected Vehicles
Every inspection must be a complete inspection before a vehicle may be approved or rejected. In case a vehicle isrejected and the owner fails to have the necessary adjustments made to the vehicle in conformance with the minimum
requirements of the Texas Vehicle Inspection Act, the required inspection fee may be charged and a rejection receipt
shall be issued which lists the items rejected and other required information. The rejection receipt must be deliveredand explained to the owner or operator of the vehicle.
The owner or operator of a vehicle rejected must make or have made the necessary adjustment or repairs and return tothe original inspection station for one reinspection within fifteen (15) days from the date of rejection (excluding the dayof rejection), in order to obtain the one reinspection without charge. The vehicle owner or operator shall have the rightto remove the vehicle to such place for correction upon paying the inspection fee and has the exclusive right todetermine by whom any repairs will be made. The customer should be informed of all defects necessary to put thevehicle in passing condition.
A Vehicle Inspection Report must be issued by the certified inspector for a vehicle presented for inspection that does
not pass the inspection requirements. Vehicle Inspection Reports are an official part of the inspection program. All
Vehicle Inspection Reports must be signed by the certified inspector, and the original given to the customer.
Any inspection station which, for any reason, cannot reinspect a vehicle to which that inspection station has issued afailing inspection report shall return the full inspection fee if charged. No vehicle will be rejected on any items notcovered by the Vehicle Inspection Act.
A reinspection of a rejected vehicle by the initial inspection station shall only include a check of the items previously
found defective unless any other obvious defects are noted. When a vehicle is repaired and returned for the one freereinspection within fifteen (15) days (excluding the day of rejection), no additional inspection fee may be charged. In
the event the vehicle fails to pass this free reinspection, the inspection station’s obligation is fulfilled. Any subsequent
inspection shall be considered as a new inspection procedure. If the rejected vehicle is returned for reinspection to theoriginal inspection station after the fifteen (15) days have elapsed from the date of rejection (excluding the day of
rejection), or if the vehicle is presented to a different inspection station for reinspection, the vehicle will be handled as if
it were being inspected for the first time.
4.20.39 Repairs
The owner of a vehicle is under no obligation to have disclosed defects corrected by the inspection station. They may
have the necessary work done where they desire or they may do it themselves. The inspection alone is all that isrequired. Although an owner has a right to have the necessary repairs or adjustments made wherever they wish, theyoften show by their actions or remarks that they expect to secure a passing VIR from some other person without having
the defects corrected. Please report this at once to the representative supervising your inspection station. Investigationof such cases by this Department will be the most effective way of protecting both the inspection stations which arehonestly conducting inspections and the motoring public. The fee is for your work in making the inspections. You shallcollect your inspection fee at the time of inspection whether the vehicle passes or fails inspection.
Inspection stations shall not in any manner attempt to require owners or operators of disapproved vehicles to have thevehicles repaired at the inspection station. The repairs necessary for approval may be made at any place chosen by
the owner or operator of the vehicle. Any and all repairs or adjustments must be specifically authorized by thevehicle owner or operator before being made by any inspection station.
After a defect requiring repair is discovered by an Official Vehicle Inspection Station, the owner of the defective
vehicle shall have the right to ask for, and receive, an estimate of the cost of parts and labor necessary to accomplish
such repair if the Official Vehicle Inspection Station is in the business of making such repairs. Said estimate shall notin any way obligate the owner of the defective vehicle to have their vehicle repaired at the Official Vehicle
Inspection Station, nor shall it create any right for the Official Vehicle Inspection Station to make such repairs.

Certain items of inspection require that established tolerances are necessary. It is necessary that every Official
Vehicle Inspection Station inform the vehicle owner or operator of any borderline passage. This precaution should betaken in any instance where it can be of value to the owner of a vehicle for minimum conformance.
04.25.0 RECOMMENDED INSPECTION PROCEDURE*Check for evidence of Financial Responsibility/CNG tank expiration (if equipped) and/or documentation
Road Test

1. Check steering - lash and free movement (full turn without jamming)
2. Check brakes:
a.

Service - pedal reserve, stopping ability, andequalizationb.

Parking - holding ability

Inside the vehicle
Check head lamps - turn on - beam indicator and dimmer switch
Check horn - sound and actuating device
Check mirrors – view to the rear and mounting
Check seat belts - presence and condition.
Check turn signal lamps - switch and proper indication
Check windshield wipers - control and operation
Outside Vehicle

1.

Check window tint (if required)2.

Check windshield wipers - required number and condition of blades

3.

Check mirror - (mounting only if outside mirror required)4.

Check tail lamp(s) - operation and condition

5.

Check stop lamp(s) - operation and condition

6.

Check center high mount stop lamp – operation and condition

7.

Check license plate lamp - operation and condition

8.

Check reflectors - condition

9.

Check turn signal lamps - operation and condition

10. Check head lamps - mounting, condition, and operation
11. Vehicles Over 80” in width - clearance lamps, side marker lamps, safety guards and flaps.

12. Check school buses - warning lamps, signs, fire extinguisher, crossover mirror, etc.
13. Check tires - tread depth and visible cuts
14. Check wheels and rims - defective or bent
15. Check license plates(s) - required number and condition.
Underneath the Vehicle
1.

Check brake system for leaksa.

Service - leaks, defective rods, or cablesb.

Parking - defective cables

2.

Check catalytic converter - leaks, presence when required3.

Check exhaust system - muffler, exhaust pipe, tailpipe, mounting brackets, and hangers for presence and condition

Under the Hood1.

Check brakes - master cylinder fluid level -leaks

2. Check exhaust emission system - presence - if required
3. Check horn - mounting and wiring
4. Check exhaust system - manifold leaks
5. Check steering - belts - fluid level – leaks
6. Check motor number (if 1955 or earlier model)
Completion

1. Explain rejection should vehicle fail inspection.
2. Issue Vehicle Inspection Report, pass or fail.

Annex 1
EFFECTIVE January 1, 2011

NOTICEPRIOR TO INSPECTION:

The owner or operator of a vehicle shall present evidence of financial responsibility to the inspection station in oneof the following ways:
1.
A liability insurance policy, or a copy of the policy, in at least the minimum amounts required by law(Texas minimum requirements are $30,000/$60,000/$25,000)
2.
A standard proof of liability insurance form promulgated by the Texas Department of Insurance andissued by a liability insurer that includes:
A. The name of the Insurer;
B. The insurance policy number
C. The policy period (dates of coverage and issued for 30 days or more);
D. The name and address of each insured person;
E. The policy limit or a statement that the coverage of the policy complies with at least theminimum amounts of liability insurance required by this Act; and,
F. The make and model of each covered vehicle.
3.
An insurance binder that confirms that the owner and/or operator is in compliance.
4.
A copy of a certificate issued by the Department of Public Safety that shows that the vehicle is covered by
self-insurance.
5.
A certificate (or copy) issued by the State Comptroller that shows that the owner of the vehicle has on
deposit with the comptroller money or securities in at least the amount required by law.
6.
A certificate (or copy of a certificate) issued by the Department of Public Safety that shows that thevehicle is a vehicle for which a bond is on file with the Department.
7.
A copy of a certificate issued by the County Judge where the vehicle is registered that shows that theowner has on deposit, cash or a cashier’s check in at least the amount required by law.
***8. Texas Department of Motor Vehicle Carrier Registration Certificates (cab cards), including:
A. Commercial Motor Vehicle Registration Certificates;
B. Commercial Motor Vehicles registered under the Unified Carrier Registration (UCR)
which is a paperless system, that must be checked on the website, www.safersys.org;
C. Household goods carrier registration certificates
D. Tow Truck Registration certificates
NOTE: Evidence of Financial Responsibility must be furnished for the TOWING VEHICLE of any trailer,
semitrailer, or pole trailer presented for inspection.
AN INSPECTION CERTIFICATE MAY NOT BE ISSUED FOR A VEHICLE FOR WHICH THE OWNER OR
OPERATOR FAILS TO FURNISH THE REQUIRED EVIDENCE OF FINANCIAL RESPONSIBILITY.
VEHICLES EXEMPT FROM THIS REQUIREMENT
1.
2.
3.

GOVERNMENT VEHICLES: U.S., State, County, City
Vehicles registered to Volunteer Fire Departments
Vehicles registered with “Antique” License Plates

VI-14 (10/12)

The general financial responsibility requirements for operating a motor vehicle in the State of Texas are found in Texas
Transportation Code, Chapter 601. However, Texas Transportation Code, Section 601.007(c), provides that Chapter 601 does not
apply to a motor vehicle that is subject to Texas Transportation Code, Chapter 643. Chapter 643 contains the financial
responsibility requirements for operating a commercial motor vehicle in the State of Texas. The owner or operator of acommercial vehicle required to register with the Texas Department of Motor Vehicles under Chapter 643 shall present
evidence of financial responsibility to the inspection station in one of the following ways:
Texas Department of Motor Vehicles Carrier Registration Certificates (Cab Cards), including:
A. Commercial Motor Vehicles Registration Certificates, which can be verified at the following
website: http://twostepsonesticker.com/motor-carriers
B. Commercial Motor Vehicles registered under the Unified Carrier Registration Act (UCR), which is apaperless system, that must be checked via the following website, www.safesys.org;
C. Household Goods Carrier Registration Certificates

Tow Truck Registration Certificates - issued by the Texas Department of Licensing and Regulation – which can be verified at thefollowing website: http://www.license.state.tx.us/LicenseSearch/Annex 2
Readjustment limits. The maximum pushrod stroke must not be greater than the values given in the tables below.
Any brake stroke exceeding the readjustment limit shall be cause for rejection. Stroke shall be measured withengine off and reservoir pressure of 80 to 90 psi with brakes fully applied. For actuator types not listed inthesetables, the pushrod stroke must not be greater than 80 percent of the rated stroke marked on the actuator by the actuator
manufacturer, or greater than the readjustment limit marked on the actuator by the actuator manufacturer.

CLAMP-TYPE BRAKE CHAMBERS
Effective Area(square inch)
4 1/2 in. (114 mm)
5 1/4 in. (34.9 mm)

Outside Diameter(inch)
1 1/4 in. (31.8 mm)
1 3/8 in. (34.9 mm)

12
16
20

5 11/16 in. (145 mm)
6 3/8 in. (162 mm)
6 25/32 in. (172 mm)

1 3/8 in. (34.9 mm)
1 3/4 in. (44.5 mm)
1 3/4 in. (44.5 mm)

24

7 7/32 in. (184 mm)

1 3/4 in. (44.5 mm)

Type

6
9

30
8 3/32 in. (206 mm)
36
9 in. (229 mm)* - For type 20 chambers with a 3-inch (76 mm) rated stroke.
** - For type 24 chambers with a 3-inch (76 mm) rated stroke.

Brake Readjustment Limit

1 3/4 in. (44.5 mm)
2 in. (50.8 mm)
2 in. (50.8 mm)
2 1/2 in. (63.5 mm)*
2 in. (50.8 mm)
2 1/2 in. (63.5 mm)**2 1/2 in. (63.5 mm)

2 in. (50.8 mm)
2 1/4 in. (57.2 mm)

BOLT-TYPE BRAKE CHAMBERS
A
B
C
D
E
F
G

Type

Outside Diameter
6 15/16 in. (176 mm)
9 3/16 in. (234 mm)
8 1/6 in. (205 mm)
5 1/4 in. (133 mm)
6 3/16 in. (157 mm)
11 in. (279 mm)
9 7/8 in. (251 mm

1 3/8 in. (34.9 mm)
1 3/4 in. (44.5 mm)
1 3/4 in. (44.5 mm)
1 1/4 in. (31.8 mm)
1 3/8 in. (34.9 mm)
2 1/4 in. (57.2 mm)
2 in. (50.8 mm)

Brake Readjustment Limit

ROTOCHAMBER-TYPE BRAKE CHAMBERS
9
12
16
20
24
30
36
50

Type

Outside Diameter4 9/32 in. (109 mm)
4 13/16 in. (122 mm)
5 13/32 in. (138 mm)
5 15/16 in. (151 mm)
6 13/32 in. (163 mm)
7 1/16 in. (180 mm)
7 5/8 in. (194 mm)
8 7/8 in. (226 mm)

1 1/2 in. (38.1 mm)
1 1/2 in. (38.1 mm)
2 in. (50.8 mm)
2 in. (50.8 mm)
2 in. (50.8 mm)
2 1/4 in. (57.2 mm)
2 3/4 in. (69.9 mm)
3 in. (76.2 mm)

Brake Readjustment Limit

BENDIX DD-3 BRAKE CHAMBERS
30

Type

Outside Diameter8 1/8 in. (206 mm)

Brake Readjustment Limit
2 1/4 in. (57.2 mm)

WEDGE BRAKES – Movement of the scribe mark on the lining shall not exceed 1/16 inch.

BRAKE STOPPING DISTANCE
CLASSIFICATION OF
VEHICLESPASSENGER
VEHICLES WITH A
SEATINGCAPACITY OF 10
PEOPLE OR LESS,INCLUDING THE
DRIVER, NOT
HAVING A
MANUFACTURER’SGROSS VEHICLEWEIGHT RATINGSINGLE UNIT
VEHICLE WITH A
MANUFACTURER’SGROSS WEIGHTRATING OF 10,000
POUNDS OR LESSSINGLE UNIT
VEHICLE WITH A
MANUFACTURER’SGROSS WEIGHTRATING OF MORE
THAN 10,000
POUNDSCOMBINATION OF
TWO AXLETOWING VEHICLE
AND A TRAILERWITH A WEIGHT
OF 3,000 POUNDSOR LESS
BUSES,REGARDLESS OF
THE NUMBER OF
AXLES, NOT
HAVING A
MANUFACTURER’SGROSS WEIGHTRATINGALL
COMBINATIONSOF VEHICLES IN
DRIVEAWAYTOWAWAY
OPERATIONSALL OTHER
VEHICLES AND
COMBINATION OF
VEHICLESBRAKING FORCE AS
A PERCENTAGE OFGROSS VEHICLE OR
COMBINATIONWEIGHT

DECELERATION IN
FEET PER SECONDBRAKE SYSTEMAPPLICATION AND
BRAKE DISTANCE IN
FEET FROM ANINITIAL SPEED OF 20
MPH

52.8%

17

25

43.5%

14

30

43.5%

14

40

43.5%

14

40

43.5%

14

40

43.5%

14

40

43.5%

14

50

Figure 1 - Truck Tractor Illustration for §393.11

Figure 2 - Straight Truck Illustration for§393.11

Annex 3

Figure 3 - Straight Truck Illustration for §393.11

Figure 4 - Straight Truck Illustration for§393.11

Figure 5 - Straight Truck Illustration for §393.11

Figure 6 - Straight Truck Illustration for §393.11

Figure 7 - Bus Illustration for §393.11

Figure 8 - Semi-Trailer Illustration for §393.11

Figure 9 - Semi-Trailer Illustration for §393.11

Figure 10 - Semi-Trailer Illustration for § 393.11

Figure 11 - Container Chassis Illustration for §393.11

Front

Rear

Figure 12 - Pole Trailer Illustration for §393.11- All Vehicle Widths(.;'\Optional Location on\.!_)Cab above Load

Front of Vehicle

Rear of Vehicle(Including Truck Cab)Figure 13 - Converter Dolly Illustration for §393.11

Side View of Dolly

RearFigure 14 - Semi-Trailer Illustration for §393.11

Figure 15 - Semi-Trailer Illustration for § 393.11

Figure 16 - Semi-Trailer Illustration for §393.11

Figure 17 - Semi-Trailer Illustration for §393.11

Figure 18 - Semi-Trailer Illustration for §393.11

LEGEND FOR FIGURES 1 THROUGH 7-49 CFR 393.11
TRUCK & BUS VEHICLE ILLUSTRATIONS{DOES NOT APPLY TO FIGURES 8 THROUGH 18 FOR TRAILERS)
Area

Equipment
Headlamps • Lower Beam
Headlamps • Upper Beam

Parking Lamps • Attention:®

Required only on vehicles less than 2032mm wide

Center High Mounted Stop Lamp
Attention:
Required for vehicles less than 2032mm wide and 4536kg

ADDITIONAL EQUIPMENT FOR SPECIFIC TRUCKS AND BUS VEHICLES
Area

EquipmentIntermediate Side Marker LampsbIntermediate Side Reflex Reflectors

TRUCK TRACTORSLEGEND FOR FIGURES 8 THROUGH 18 • 49 CFR 393.11
TRAILER ILLUSTRATIONS(DOES NOT APPLY TO FIGURES 1THROUGH 7 FOR TRUCKS & BUSES)

ADDITIONAL EQUIPMENT FOR TRAILERS EXCEEDING THE
FOLLOWING PARAMETERSLENGTH 9.1 m (30 ft.) OR LONGER
Area

EquipmentIntermediate Side Marker Lamps
Intermediate Side Reflex Reflectors

WIDTH 2.032 m (80 in.) OR WIDER
Equipment
Rear Clearance Lamps
Rear Identification Lamps
Front Clearance Lamps

WIDTH 2.032 m (80 in.) OR WIDER AND GVWR 4,536 kg (10,000 lb.)
ORMORE.
DESCRIPTION
Area

Conspicuity Treatment
Rear Upper Body Marking
Bumper Bar Marking
Rear Lower Body Marking
Side Marking

FMCSA’s
Conspicuity
RequirementsforCommercial
Motor Vehicles

Introduction
The FMCSA has regulations requiring the useof conspicuity materials (i.e., retroreflective
sheeting (or reflex reflectors)) on trailers andthe rear of truck tractors. The rules areintended to reduce the incidence of
motorists crashing into the sides or rear oftrailers at nighttime and under otherconditions of reduced visibility, and to
reduce the incidence of motorists rear-ending
truck tractors (being operated without
trailers) under the same conditions.
There are three separate groups ofcommercial motor vehicles subject to the
FMCSA’s requirements and the date of
manufacture for the vehicle must be known
to determine the applicability of the rules tothe vehicle. The rules cover trailers
manufactured on or after December 1, 1993,
the retrofitting of trailers built before thatdate, and truck tractors built on or after
July 1, 1997.

Requirements for Trailers
Manufactured on or After
December 1, 1993 (49 CFR 393.11)
On December 10, 1992, the National Highway
Traffic Safety Administration (NHTSA)
published a final rule requiring that trailers
manufactured on or after December 1, 1993,
which have an overall width of 2,032 mm(80 inches) or more and a gross vehicle
weight rating (GVWR) of more than 4,536 kg(10,000 pounds), except pole trailers andtrailers designed exclusively for living or
office use, be equipped on the sides and rear
with a means for making them more visibleon the road.
The NHTSA rule allows trailer manufacturers
to install either red and white retroreflective
sheeting or reflex reflectors. Manufacturers ofretroreflective sheeting or reflectors are
required to certify compliance of theirproduct with Federal Motor Vehicle Safety
Standard (FMVSS) No. 108 (49 CFR 571.108)
whether the product is for use as original or
replacement equipment.
The manufacturers certification will consist of
one of the following markings depending on
the type of conspicuity material:
DOT-C Rectangular reflex reflectors
certified as meeting the standard.
DOT-C2 50 millimeter (mm) wide
retroreflective sheeting material
certified as meeting the standard.
DOT-C3 75 mm wide retroreflective
sheeting certified as meeting thestandard.
DOT-C4 100 mm wide retroreflective
sheeting certified as meeting thestandard.

Currently, §393.11 requires that all lamps andreflective devices on motor vehicles placedin operation after March 7, 1989, meet therequirements of FMVSS No. 108 in effect on
the date of manufacture. Therefore, trailers
manufactured on or after December 1, 1993,
must have reflective devices of the type andin the locations specified by FMVSS No. 108,
including the conspicuity treatments.

Locations for Conspicuity
Treatment
The following is a description of where theconspicuity treatments have to be located on
trailers. Illustrations of conspicuity treatments
on some common types of trailers are also
provided at the end of this publication.
Sides of the trailer
The retroreflective sheeting (or reflex
reflectors) required by § 393.11 (through its
cross reference to FMVSS No. 108) must be
applied to each side of the trailer
or semitrailer. Each strip ofretroreflective sheeting (orreflex reflector) must be
positioned ashorizontally aspracticable, beginningand ending as close to
the front and rear aspracticable. The
conspicuity treatment
is not required to becontinuous. However,the sum of the lengthof all of the segments
must be at least half ofor as close as practicable to this area.
If necessary to clear rivet heads or othersimilar obstructions, 50 mm (2 inches) wide
retroreflective sheeting may be separated
into two 25 mm (1 inch) wide strips of thesame length and color, separated by a spaceof not more than 25 mm (1 inch).
Lower rear area of the trailer
The rear of each trailer and semitrailer must
be equipped with retroreflective sheeting(or reflex reflectors). Each strip ofretroreflective sheeting (or reflex reflector)
must be positioned as horizontally aspracticable, extending across the full widthof the trailer, beginning and ending as close
to the extreme edges as practicable. The
centerline for each of the strips ofretroreflective sheeting (or each reflex
reflector) must be between 375 mm(15 inches) and 1,525 mm (60 inches) above
the road surface when measured with thetrailer empty or unladen, or as close aspracticable to this area.
Upper rear area of the trailer
Two pairs of white stripsof retroreflective
sheeting (or reflex

Upper
Rear
Lower
Rear

the length of the trailer andthe spaces between thesegments of the strip must be
distributed as evenly as practicable. The
centerline for each strip of retroreflective
sheeting (or reflex reflector) must be
between 375 mm (15 inches) and 1,525 mm(60 inches) above the road surface whenmeasured with the trailer empty or unladen,Side

reflectors), each pairconsisting of strips
300 mm (12 inches)
long, must be
positioned horizontallyand vertically on theright and left upper
corners of the rear of the
body of each trailer andsemitrailer, as close aspracticable to the top of thetrailer and as far apart as practicable.
If the perimeter of the body, as viewed fromthe rear, is not square or rectangular, theconspicuity treatments may be applied along
the perimeter, as close as practicable to theuppermost and outermost areas of the rear of
the body on the left and right sides.

Requirements for Trailers
Manufactured Before
December 1, 1993 (49 CFR 393.13)
On March 31, 1999, the Federal Motor Carrier
Safety Regulations (FMCSRs) were amended torequire that motor carriers engaged ininterstate commerce install retroreflective
tape or reflex reflectors on the sides and rearof semitrailers and trailers that were
manufactured prior to December 1,1993,
have an overall width of 2,032 mm(80 inches) or more, and a gross vehicle
weight rating (GVWR) of 4,536 kg(10,001 pounds) or more. As a result of that
final rule, motor carriers must install
retroreflective tape or reflex reflectors on
their older trailers by June 1, 2001. The

FMCSA is allowing motor carriers a certain
amount of flexibility in terms of the colors orcolor combinations until June 1, 2009, but
requires that all older trailers be equippedwith conspicuity treatments identical tothose mandated for new trailers by 2009.
The retrofitting requirements may be foundat 49 CFR 393.13.
In the simplest terms, the locations at which
the conspicuity materials must be placed on
the older trailers is the same as the trailers
manufactured on or after December 1, 1993.
The only differences are that: flexibility isallowed in terms of the color, there is norequirement for certification marking on theconspicuity material, and there is norequirement for conspicuity materials on therear impact guard.

Special Note on the Use of Conspicuity Treatments
In Lieu of Reflex Reflectors on Trailers
Trailers which are equipped with conspicuity material which meets therequirements of FMVSS No. 108 are not required to be equipped withthe reflex reflectors listed in the regulations if —(i) The conspicuity material is placed at the locations where reflex
reflectors are required; and(ii) The conspicuity material when installed on the motor vehicle
meets the geometric visibility requirements for the reflex reflectors.

Requirements for Truck Tractors
Manufactured After
July 1, 1997 (§ 393.11)
On August 8, 1996, the NHTSA published a
final rule requiring that truck tractors
manufactured on or after
July 1, 1997, be equipped with
red-and-white retroreflective
material similar to that requiredon the rear of the trailers they
tow to increase nighttime
conspicuity. Manufacturers may
choose either retroreflective
sheeting or reflex reflectors.
In the case of truck tractorsdelivered with a temporary mudflap
arrangement rather than permanentequipment, the requirement for
retroreflective material near the top of the
mudflap may be satisfied withmaterial carried by the temporary
mudflap brackets that aretransferable to the permanent
mudflap system. Retroreflective
material is also required near the
top of the cab in apattern similar to that used on
trailers.
Currently, § 393.11
requires that all lamps
and reflective devices
on motor vehicles
placed in operation
after March 7, 1989,

meet therequirements of
FMVSS No. 108 in
effect on the date of
manufacture.
Therefore,truck tractors
manufactured on
or after
July 1, 1997, must havereflective devices of the typeand in thelocations specified by FMVSS No.
108,including the conspicuity
treatments.

Reprint of Retrofitting Requirements and Examples ofConspicuity Treatments§ 393.13 Retroreflective Sheeting
and Reflex Reflectors Requirements
for Semitrailers and Trailers
Manufactured Before
December 1, 1993.
(a) Applicability
All trailers and semitrailers manufactured priorto December 1, 1993, which have an overall
width of 2,032 mm (80 inches) or more and agross vehicle weight rating of 4,536 kg(10,001 pounds) or more, except trailers thatare manufactured exclusively for use as offices
or dwellings, pole trailers (as defined in§ 390.5), and trailers transported in adriveaway-towaway operation, must be
equipped with retroreflective sheeting or anarray of reflex reflectors that meet therequirements of this section. Motor carriers
have until June1, 2001 to comply with therequirements of this section.
(b) Retroreflective sheeting and reflex
reflectors
Motor carriers are encouraged to retrofit theirtrailers with a conspicuity system that meets
all of the requirements applicable to trailers
manufactured on or after December 1, 1993,
including the use of retroreflective sheeting or
reflex reflectors in a red and white pattern(see Federal Motor Vehicle Safety Standard No.
108 (49 CFR 571.108), S5.7, Conspicuity
systems). Motor carriers which do not retrofit
their trailers to meet the requirements of
FMVSS No. 108, for example by using analternative color pattern, must comply with theremainder of this paragraph and with paragraph(c) or (d) of this section. Retroreflective
sheeting or reflex reflectors in colors or color
combinations other than red and white may be
used on the sides or lower rear area of thesemitrailer or trailer until June 1, 2009. The
alternate color or color combination must be
uniform along the sides and lower rear area ofthe trailer. The retroreflective sheeting or
reflex reflectors on the upper rear area of thetrailer must be white and conform to therequirements of FMVSS No. 108 (S5.7). Red
retroreflective sheeting or reflex reflectors
shall not be used along the sides of the trailer

unless it is used as part of a red and white
pattern. Retroreflective sheeting shall have awidth of at least 50 mm (2 inches).
(c) Locations for retroreflective sheeting(1) Sides
Retroreflective sheeting shall be applied toeach side of the trailer or semitrailer. Each stripof retroreflective sheeting shall be positioned
as horizontally as practicable, beginning andending as close to the front and rear aspracticable. The strip need not be continuous
but the sum of the length of all of thesegments shall be at least half of the length of
the trailer and the spaces between thesegments of the strip shall be distributed as
evenly as practicable. The centerline for each
strip of retroreflective sheeting shall be
between 375 mm (15 inches) and 1,525 mm(60 inches) above the road surface whenmeasured with the trailer empty or unladen, or
as close as practicable to this area. If necessary
to clear rivet heads or other similar
obstructions, 50 mm (2 inches) wide
retroreflective sheeting may be separated into
two 25 mm (1 inch) wide strips of the samelength and color, separated by a space of not
more than 25 mm (1 inch).
(2) Lower rear area
The rear of each trailer and semitrailer must be
equipped with retroreflective sheeting. Each
strip of retroreflective sheeting shall bepositioned as horizontally as practicable,
extending across the full width of the trailer,
beginning and ending as close to the extreme
edges as practicable. The centerline for each of
the strips of retroreflective sheeting shall be
between 375 mm (15 inches) and 1,525 mm(60 inches) above the road surface whenmeasured with the trailer empty or unladen, or
as close as practicable to this area.
(3) Upper rear area
Two pairs of white strips of retroreflective
sheeting, each pair consisting of strips
300 mm (12 inches) long, must be positioned
horizontally and vertically on the right and left
upper corners of the rear of the body of eachtrailer and semitrailer, as close as practicable torectangular, the strips may be applied along theSides
Reflex reflectors shall be applied to each side of
the trailer or semitrailer. Each array of reflex
reflectors shall be positioned as horizontally aspracticable, beginning and ending as close to
the front and rear as practicable. The arrayneed not be continuous but the sum of thelength of all of the array segments shall be atleast half of the length of the trailer and thespaces between the segments of the strip shallbe distributed as evenly as practicable. The
centerline for each array of reflex reflectors
shall be between 375 mm (15 inches) and
1,525 mm (60 inches) above the road surface

The rear of each trailer and semitrailer must be
equipped with reflex reflectors. Each array ofreflex reflectors shall be positioned ashorizontally as practicable, extending acrossthe full width of the trailer, beginning andending as close to the extreme edges aspracticable. The centerline for each array ofreflex reflectors shall be between 375 mm(15 inches) and 1,525 mm (60 inches) above theempty or unladen, or as close as practicable topair at least 300 mm (12 inches) long, must be
body of each trailer and semitrailer, as close as

unladen, or as close as practicable to this area.
than 100 mm (4 inches) from the center of eachreflectors of the first color shall be as close asrectangular, the arrays may be applied along theExamples ofConspicuity Treatment

Trailers –12 in.

Flatbeds –Tankers –12 in.

Tractors –Illustrations courtesy of
3M Commercial Graphics Division.

CHAPTER SIXCOMMERCIAL MOTOR VEHICLESCHAPTER CONTENTINSPECTION ITEMS FOR COMMERCIAL MOTOR VEHICLES .................................................. 06.00.00
EXCEPTIONS TO THE CMV INSPECTION REQUIREMENTS ..................................................... 06.05.00
COMMERCIAL VEHICLE INSPECTION ITEMS ............................................................................ 06.10.00
CMV INSPECTION PROCEDURES ................................................................................................. 06.15.00
Backup Lamps .................................................................................................................................... 15.1
Beam Indicator.................................................................................................................................... 15.2
Brake System ...................................................................................................................................... 15.3
Clearance Lamps ................................................................................................................................ 15.4
Coupling Devices................................................................................................................................ 15.5
Exhaust System................................................................................................................................... 15.6
Frames ................................................................................................................................................ 15.7
Fuel System ........................................................................................................................................ 15.8
Hazard Warning Lamps ...................................................................................................................... 15.9
Head Lamps ...................................................................................................................................... 15.10
Horn .................................................................................................................................................. 15.11
Identification Lamps ......................................................................................................................... 15.12
License Plate Lamp........................................................................................................................... 15.13
Mirrors .............................................................................................................................................. 15.14
Reflective Sheeting/Reflex Reflectors – Conspicuity System........................................................... 15.15
Reflectors (Rear/Side)....................................................................................................................... 15.16
Safety Guards or Flaps ...................................................................................................................... 15.17
Seat Belts .......................................................................................................................................... 15.18
Side Marker Lamps........................................................................................................................... 15.19
Steering Mechanism ......................................................................................................................... 15.20
Stop Lamps ....................................................................................................................................... 15.21
Suspension ........................................................................................................................................ 15.22
Tail Lamps ........................................................................................................................................ 15.23
Tires .................................................................................................................................................. 15.24
Turn Signal Lamps ........................................................................................................................... 15.25
Vehicle Identification Number (VIN) ............................................................................................... 15.26
Wheels and Rims .............................................................................................................................. 15.27
Window Tinting or Coating .............................................................................................................. 15.28
Windshield ........................................................................................................................................ 15.29
Windshield Wipers ........................................................................................................................... 15.30
EXAMPLES OF DEFECTIVE EQUIPMENT ON COMMERCIAL VEHICLES.............................. 06.20.00

CHAPTER SIXCOMMERCIAL MOTOR VEHICLES
06.00.00 INSPECTION OF COMMERCIAL
MOTORVEHICLES -APPLICABILITY
1. The term “commercial motor vehicle” means aself- propelled or towed vehicle, other than a farmvehicle with a gross weight, registered weight, or
gross weight rating under 48,000 pounds, that is used
on a public highway to transport passengers or cargoif:
a. The vehicle, including a school activity bus asdefined in Texas Transportation Code (TRC)
Section 541.201, or combination of vehicles has agross weight, registered weight, or gross weightrating of more than 26,000 pounds; orb. The vehicle, including a school activity bus asdefined by TRC 541.201, is designed to transport
more than 15 passengers, including the driver; orc. The vehicle is used to transport hazardous
materials in a quantity requiring placarding by aregulation issued under the Hazardous Materials
Transportation Act (49 U.S.C. Section 5101 etseq.). Additionally, if an automobile or motorcycle istransporting a hazardous material that requires
placarding; these types of vehicles would also be
required to have a commercial vehicle inspection.

2. The Commercial Motor Vehicle (CMV)
Inspection Program also applies to any:a. school bus that will operate at a speed of 60 mph
outside of an urban district as authorized by TRC
545.352(b)(4)(A).
b. vehicle or combination of vehicles with agross weight rating of more than 10,000 pounds
that is operated in interstate commerce andregistered in this state.
3. A commercial motor vehicle that is registered inthis state shall be required to pass an annual
inspection of all safety equipment required by theFederal Motor Carrier Safety Regulations.
4. A commercial motor vehicle required to beinspected under the Federal Motor Carrier Safety
Regulations (FMCSR) is also subject to theregular state inspection requirements set forth in
Chapter 4 of the Vehicle Inspection Operations &Training Procedures. The statutory fee may becharged for each commercial inspection. A signed
vehicle inspection report will be issued for eachpassing CMV which will designate the vehicle has
met both the FMCSR and state inspection
requirements.
06.05.00 EXCEPTIONS TO THE CMVINSPECTION REQUIREMENTS
1. All school bus operations used to transport
only children and/or school personnel from home toschool and school to home (contract school buses
are not exempt if used for any purpose other thantransporting children to and from school).
2. Transportation performed by the Federal
Government, State, or any political subdivision of
a State, or an agency established under a compact
between States that has been approved by theCongress of the United States.

Examples of Hazardous Material Placards

3. The occasional transportation of personal
property by individuals not for compensation orin the furtherance of a commercial enterprise.

4. Transportation of human corpses or sick or
injured persons.
5. The operation of fire trucks and rescue
vehicles while involved in emergency andrelated operations.
6. The operation of a commercial motor vehicle
designed or used to transport between 9 and 15
passengers (including the driver), not for directcompensation, provided the vehicle does nototherwise meet the definition of a commercial
motor vehicle.
7. The operation of a commercial motor vehicle
designed or used to transport between 9 and 15
passengers (including the driver) for directcompensation, provided the vehicle does nototherwise meet the definition of a commercial
vehicle.
8. The following farm vehicles when displaying
farm license plates, or when in possession of a Stateissued Covered Farm Vehicle designation, nottransporting hazardous materials requiring
placarding, and not operating as a for-hire motor
carrier:a. Covered farm vehicles as defined in 49 CFR
390.5. {37 TAC 4.36(g)(7)}.
9. Even if the vehicle is not required to have a
CMV Inspection, the vehicle may have to comply
with the state inspection requirements set forth in
Chapters 4 and 5.
06.10.00 COMMERCIAL VEHICLE
INSPECTIONITEMS
A. Check for evidence of financial responsibility.
A commercial motor vehicle defined in
06.00.00(1)(a), (b), and (c) is not required todisplay the standard proof of liability insurance
form. The primary method for a commercial motor
vehicle to show proof of financial responsibility isfound in Annex #1 – Item #8 via cab card or
certificate. (Refer to Annex #1).

A commercial motor vehicle not required to registerwith the Texas Department of Motor Vehicles under
Texas Transportation Code, Chapter 643, may display
the standard proof of liability insurance form.
B. Licensed dealers of Compressed Natural Gas(CNG), Liquefied Natural Gas (LNG), andLiquefied Petroleum Gas (LPG) are required tocollect the per gallon tax when the fuel is sold ordelivered into a motor vehicle’s fuel supply tank.
Vehicles that operate using CNG, LNG, or LPG will
no longer prepay the CNG, LNG, or LPG tax bypurchasing a decal from the Texas Comptroller’s
Office. Therefore, a valid liquefied gas tax decal is
no longer required to be present before an
inspection can be conducted on CNG, LNG, or LPG
fueled vehicles.
C. Compressed Natural Gas (CNG) Fuel System
As a pre-requisite to issuing a passing vehicle
inspection report, the inspector must verify that a
motor vehicle equipped with a CNG Fuel Systemcomplies with the requirements of 49 CFR 571.304
and that the expiration date of the fuel container tankhas not been exceeded. The inspector can complete
this inspection requirement through observation and/or
documentation.
The CNG Fuel System inspection should bemade immediately after checking for proof of
financial responsibility with the owner or
operator of the vehicle present.
Observation – Check the label on the CNG fuelcontainer
The CNG fuel container will be located in various
places on a CMV. The CNG fuel container isoften located in the same position where thestandard fuel tanks would be placed. Additionally,
the CNG fuel container may be located under thevehicle frame or behind the vehicle cab. On buses,
the CNG fuel container is often located under thepassenger compartment or on the roof of thepassenger compartment.

The CNG fuel container label will be located on the
CNG fuel tank.

The inspector should review the label
information to determine what the expiration
date of the CNG fuel container tank is and if
the fuel container tank was manufactured incompliance with 49 CFR 571.304. The
expiration date will be shown on the label. The
label will also contain “DOT 49 CFR
571.304”, DOT FMVSS 304”, or a similarstatement or marking that indicates that thetank was manufactured in accordance with 49
CFR571.304.
If the CNG fuel tank container label is notreadily visible, an alternative location to checkfor compliance with 49 CFR 571.304 and forthe expiration date on the CNG fuel container ison the fuel receptacle lid.

Documentation – The vehicle owner or operator may
provide documentation from the original equipment
manufacturer of the CNG fuel tank container or froma CNG installer or inspector, certified by the Texas
Railroad Commission, that the expiration date of the
CNG fuel tank container is not expired and the fueltank container was manufactured in accordance with
49 CFR 571.304. In this situation, the inspector need
not visually observe the labels as described above,
however, the inspector must retain a copy of the
documentation provided in the Vehicle Inspection
Station‘s files for a period of one year from the dateof the inspection.
The vehicle owner or operator may provide
documentation that the vehicle is a fleet vehicle andthat the fleet operator employs an installer or
inspector, certified by the Texas Railroad Commission,
for CNG Fuel Systems. In this situation, the inspector
need not visually observe the labels as describedabove, however, the inspector must retain a copy ofthe documentation provided in the Vehicle Inspection
Station‘s files for a period of one year from the monthof the inspection.
The following is an example of the type of
information a fleet operator should provide:
October 30, 2015
To Whom It May Concern:

A label will normally be placed on the fuelreceptacle lid and will contain both the expiration
date for the CNG fuel tank container and informationthat confirms that the fuel tank container was
manufactured in accordance with 49 CFR 571.304.
An additional location to check for the CNG fueltank container expiration date and for compliancewith 49 CFR is on a label that may be found in theengine compartment. On certain vehicles, CNG
labels may also be affixed to either the driver orpassenger door frame or in the glove box area.

This statement is furnished to comply with therequirements of 37 Texas Administrative Code(TAC) 23.41(e), relating to the inspection of
a vehicle equipped with a compressed naturalgas (CNG) fuel system. Pursuant to 37 TAC
23.41(e), I hereby certify that this vehicle
equipped with a CNG fuel system is a fleet
vehicle owned by the Railroad Commissionof Texas for which the Railroad Commissionof Texas employs a certified installer or
inspector of CNG fuel systems as defined in
37 TAC 23.41(g).

CNG Inspection Procedure:
1.

2.

3.

Determine by observation if the CNG Fuel
Tank Container exceeds the expiration dateshown on the container’s label or other
CNG Fuel System labels attached to thevehicle and if the CNG Fuel Tank
Container was manufactured in accordancewith 49 CFR 571.304; orReview documentation, provided by thevehicle owner or operator, from the original
equipment manufacturer of the CNG Fuel
Tank Container or from a Texas Railroad
Commission certified CNG installer or
inspector that the expiration date of the
CNG fuel tank container is not expired andthe CNG Fuel Tank Container was
manufactured in accordance with 49 CFR
571.304 (retain copy of documentation
provided for 1 year in VI Station’s files); or
If the owner or operator states that thevehicle to be inspected is a fleet vehicle,
review documentation provided by theowner or operator that the fleet operator
employs a Texas Railroad Commission
certified installer or inspector for CNG
Fuel Systems (retain copy of
documentation provided for 1 year in VI
Station’s files).

Reject Vehicle if:
1. The CNG Fuel Tank Container was not
manufactured in accordance with 49 CFR
571.304.
2.

The CNG Fuel Tank Container has
exceeded its expiration date.

3.

Compliance with 49 CFR 571.304 cannot
be determined through observation or
documentation.

4.

The expiration date of the CNG Fuel
Tank Container cannot be determinedthrough observation or documentation.

5. If a fleet operator does not provide
documentation that the fleet operator employsa certified installer or inspector for CNG Fuel
Systems, unless compliance can be determinedby reviewing the CNG labels affixed to thevehicle or from documentation provided by
the original equipment manufacturer or from acertified CNG installer or inspector.
A Failing Vehicle Inspection Report is not required tobe completed for a vehicle powered by a CNG Fuel
System that fails the CNG inspection criteria as thisdetermination should be made immediately after
verifying that the vehicle is covered by valid insurance
or other financial responsibility documents. If the
CNG Fuel System does not pass the inspection, theinspection process shall not proceed any further. The
inspector should advise the owner or operator of thevehicle the reason why the CNG Fuel System is failingthe inspection.
D. The following is a list of items to be inspected inorder to be in compliance with the FMCSR annual
inspection.
1. Backup Lamp
2. Beam Indicator
3. Brake System
4. Clearance Lamps
5. Coupling Devices
6. Exhaust System
7. Frames
8. Fuel System
9. Hazard Warning Lamps
10. Head Lamps
11. Horn
12. Identification Lamps
13. License Plate Lamp
14. Mirrors
15. Reflective Sheeting/Reflex
Reflectors-Conspicuity System
16. Reflectors(Rear/Side)
17. Safety Guards or Flaps
18. Seat Belts
19. Side Marker Lamps
20. Steering Mechanism

21. Stop Lamps
22. Suspension
23. Tail Lamps
24. Tires
25. Turn Signal lamps
26. Vehicle Identification Number (VIN)
27. Wheels and Rims
28. Window Tinting or Coating
29. Windshield
30. Windshield Wipers
06.15.00 CMVINSPECTION PROCEDURES
A crack in a required lamp is defined as any
break, separation, or missing part that permits lightfrom the bulb to emit through the crack or break.
15.1

Backup Lamps

15.2

Beam Indicator

Every new motor vehicle registered in Texas afterJanuary 1, 1948, other than a motorcycle or a motordriven cycle, which has multiple beam road lighting
equipment, shall be equipped with a beam indicator(no certain color required) which shall be lighted
whenever the uppermost distribution of light from thehead lamp is in use, and shall not be otherwise lighted.
Said indicator shall be so designed and located thatwhen lighted it will be readily visible without glare to
the driver of the vehicle so equipped.
1. Inspection Procedure. Check operation andcondition visually.
2. Inspect for and reject if: (When required)

1. Inspect for and reject if (Refer to Annex #3

a. Vehicle not equipped with a beam indicator.

for lighting diagrams):

b. Improper switching indication.

a. At least one steady burning lamp notpresent on bus, truck, or truck tractor.

c. Produces glaring light.

b. Not securely mounted or properly

d. Inoperative for any reason.

located.

Brake Systemc. Lamp does not emit proper color (white);lens or bulb painted; or repaired with repair
tape or repair kit.

15.3

d. Lens cracked, broken, discolored, missing,

1. Brake System: A combination of one or moreor a portion of the lens is missing.

e. Wiring insulation is worn, rubbed bare,or evidence of burning, short circuiting, orpoor connection.

f. Lamp is not clearly visible in normal
sunlight. LED lights have less than 50% of
diodes illuminated.
g. Lamp not activated properly when bus,
truck, or truck tractor is in reverse.

h. Lamp assembly is cracked allowing waterto enter into the lamp assembly or the lamp
assembly contains standing water.

Definitions:brakes and their related means of operation andcontrol.

2. Service Brake System: A brake system used forretarding, stopping, and controlling the vehicle undernormal operating conditions. This brake is sometimes
referred to as the “foot brake.”

3. Parking Brake System: A brake system used to holdand maintain the vehicle in a stationary position. A
positive mechanical means is employed to hold thebrake applied when the vehicle is unattended.

4. Pedal Reserve: As applied to hydraulic, mechanical,

or power assisted hydraulic brakes, this is the amountof distance (total pedal travel) left in reserve when
the pedal is depressed to the brake-applied position.
The purpose of the pedal reserve check is to ascertain
the degree of the brake adjustment and todemonstrate satisfactory brake actuating system
condition.

5. Equalization: Brakes shall be so adjusted as tooperate as equally as practicable with respect tothe wheels on the opposite sides of the vehicle.

6. Driveaway-Towaway Operation: Any operationin which any motor vehicle, trailer, or semitrailer,
singly or in combination, new or used, constitutes
the commodity being transported when one set or
more of wheels of any such vehicle are on the
roadway during the course of the transportation,
whether or not any such vehicle furnishes the motor
power.
Every commercial motor vehicle shall be equippedwith brakes acting on all wheels, except trucks
and truck-tractors having three or more axles andmanufactured without brakes on the front wheels
before July 25, 1980.
Any vehicle being towed in a driveaway towaway
operation, provided the combination of vehicles iscapable of complying with the brake performancerequirements, does not require brakes acting on
all wheels. House moving dollies that are required to
be inspected under the commercial vehicle
inspection program are exempt from the braking
requirements under the FMCSR and under the
special mobile equipment sections of state law.
Converter dollies are not exempt from the braking
requirements under the FMCSR and special mobile
equipment sections of state law.
The service brake test on commercial motor
vehicles will be conducted using one of thefollowing methods:
1. On Road (Decelerometer);
2. On Road (Brake Test Area);
3. Platform-Type Tester; or
4. Roller-Type Tester(DynamometerForce Measuring Type).

Service Brake Tests

5. On Road (Decelerometer): Mount an approved
Decelerometer at centerline of the vehicle. Level the
Decelerometer. At a speed of 20 mph apply service
brake firmly. Observe Decelerometer reading.
A. Decelerometer Test Procedures:(1) This tester is an inertia-type Decelerometerconsisting of a scale to measure the vehicle’s
deceleration or equivalent braking force(sometimes referred to as brake efficiency) inpercentages. The Decelerometer is generally
placed as close to the center of the vehicle aspracticable (on window of right front door) andthe vehicle is operated on the roadway outside
the inspection station.
(2) Operation:a. Level Decelerometer and set to “0.”b. Drive vehicle on a clean, level road (roadgrade of 5% or less) at 20 mph and apply brakes
evenly, without skidding vehicle wheels.
c. Read the dial to see if vehicle stopped withinrequired stopping distance for class of vehicle.
d. For brake balance (equalization), the vehicle
should stop in a straight line. A pull to side,right or left, during a test stop indicates brake
unbalance.
6. Conditions affecting brake tester readings:
a. Wet tires and roadways may cause readingsof braking efficiency to be inaccurate.
b. Oil slicks, sand, or other foreign material ontires or roadways may also cause readings ofbraking efficiency to be inaccurate.
c. Worn or slick tires may also cause readings to
be inaccurate.
d. Any fast, hard application of the brake cancause wheel lockup and tire skid.
2. On Road (Road Test): At a speed of 20 mph apply

service brakes firmly. Observe whether a vehicle
comes to a smooth stop within the distance prescribedby the chart, “Brake Stopping Distance.”

The inspector should have firm control of thesteering wheel throughout the test. If a Brake Test
Area is used, all vehicles being inspected should be
driven at a speed of 20 mph and the vehicle
must stop as indicated by the Stopping Distance
Chart in Annex #2.
A. If a road test is used for checking
service brakes:(1) Brake test area must be used on every

inspection made.

(2) When it is raining, snowing, or when

the brake surfaces are wet, brake tests are
permitted; however, if the certified inspector
feels that they cannot safely and with due
care accurately check the service brakes,
inspector may refuse to perform theinspection.

(3) No inspections are permitted when thebrake test areas are icy.

(4) Extreme care must be exercised andsudden stops must be avoided if other traffic isaffected.
(5) The brake p e d a l application must be

applied when the vehicle speed reaches 20 miles perhour. The stopping distance is to bemeasured from the point at which the service
brake pedal or control begins. The vehicle muststop within the prescribed stopping distancerequirements and must not pull to the right orleft. Using the service (foot) brake only, thestopping ability of the vehicle should be tested
by actual operation of the vehicle.

(6) When applying brakes to the moving

vehicle, the braking force must be evenly
distributed to the wheels. The brakes should be
so adjusted as to operate as equally aspracticable with respect to the wheels on the
opposite sides of the vehicle. The drivershould have a firm control of the steering
wheel throughout the test.
(7) Brakes on a truck-tractor may beinspected without a trailer; however, a trailer
shall be inspected only with a towing vehicle
attached.

3. Platform Tester: Drive vehicle onto “drive-onand- stop” platform tester consisting of 4 pads or
platforms, one for each wheel. Apply brakes firmly
at a speed from 4-8 mph without wheel lockup.
All braking action must take place on the platforms.
Front-wheel drive vehicles are to be checked byroad test only unless a platform tester specificallyapproved by the Department to test front-wheel
drive vehicles is used. These machines may be used
to inspect the relative effectiveness of each wheel.
When the brakes are applied at the time the vehicle
is moving on the pads, the braking effort at eachwheel causes a proportionate movement of the padagainst the measuring system. There should bebraking action on all wheels and the action on any
one wheel should be 75 percent or more of theaction on the other wheel on the same axle.

A. Platform Test Procedures:(1) Drive vehicle on brake tester about 5 miles

per hour and apply the brakes firmly but not
severely. (Excessive speed and braking should be
avoided).

(2) These machines may be used to inspect therelative effectiveness of each wheel. There
should be braking action on all wheels, unlessotherwise exempt.

(3) Each gauge will record the individual wheel

braking effort in hundreds of pounds.

(4) Total braking effort and comparative braking

energy can be determined.

(5) The tester must be properly installed,
maintained, and kept clean at all times.
(6) If the vehicle fails the first brake test, asecond brake test must be conducted before thevehicle is rejected.

B. Equalization and Tolerances:(1) Total reading must not be less than 50% of

the total weight of the vehicle if the vehicle has
brakes on all wheels. The required 50% is theequivalent of a vehicle stopping within 25 feet at
20 miles per hour.

(2) Total reading must not be less than 35%of the weight of the vehicle if the vehicle
does not have brakes on all wheels. The
required 35% is the equivalent of a vehicle
stopping within 39 feet at 20 miles per hour.

(3) Brake machine readings on each
opposing wheel of the same axle shall bewithin 25% on the front axle and within 35%
on the rear axle.

C. Conditions affecting Platform Tester
readings:(1) Wet tires or wet tread plates (pads) willcause readings of braking efficiency to beinaccurate.

(2) Grease, sand, or other foreign material

on tires or tread plates (pads) will also cause
readings of braking efficiency to be inaccurate.
(3) Worn or slick tires will not affect braketester as much as they will affect a road test.

(4) Dirt and debris under the tread plates(pads).

Measuring Type): This type brake tester is equippedwith powered rollers that rotate the wheels at a
speed of approximately 35 to 45 miles per hour withthe vehicle in a stationary position. The brakes areapplied while the wheels are turning. Measurementsof both BRAKING FORCE (Brake Effort) and
BRAKE BALANCE are indicated on the gauge(s).
Brake fade can also be tested on this machine.
(A) Adjust tire inflation to recommended

values.

(B) Position vehicle on dynamometer rolls

and begin test.

(C) Follow Department’s recommended

testing procedures as follows.

(D) Operation - Acceptance Tests. With tester
in operation and wheels turning, apply brakes
slowly until brake effort reaches thefollowing values and hold for 5-6 seconds:(1) Small vehicle up to 2,200 pounds - 175

lb Brake Effort/Wheel (Total 350 pounds)(2) Light compacts 2,300 to 3,000 pounds - 230

lb Brake Effort/Wheel (Total 460 pounds)

4. Roller-Type Brake Dynamometer-Force(3) Heavy compacts 3,100 to 3,600 pounds -285 lb Brake Effort/Wheel (Total 570 pounds)

5. Test Brake Hydraulic System for Leakage(4) All others over 3,700 pounds - 335 lb

Brake Effort/Wheel (Total 670 pounds)

While the vehicle is stopped, the inspector should be
able to apply a moderate foot force (40 – 60 pounds in
non-power assisted systems or 15 – 20 pounds inpower assisted systems).

(5) Brake Balance Test - During the “Brake

6. Test Pedal Reserve(E) As an additional service to the vehicle

While the vehicle is stopped, the inspector should
depress the brake pedal under moderate foot force (40– 60 pounds in non-power assisted systems or 15– 20 pounds in power assisted systems).

Force Test,” variance in braking force
between wheels should not exceed 70 pounds.

owner or operator, the inspection station ispermitted to perform an additional dynamic
brake inspection according to recommendationsof the equipment manufacturer. However,rejection must be based on the above
parameters under “Operation - Acceptance
Tests.”(F) If substandard brake conditions are foundthat are not exposed by the above acceptancetest, the inspection station may suggest thatbrake repairs be made but must clearly informthe vehicle owner or operator that such repairs
are not mandatory to pass inspection.

7. Check Condition of Vacuum System(A) Inspection Procedures:(1) Visually inspect the vacuum system forcollapsed, broken, badly chafed, and improperly
supported hoses and tubes. Check for loose or
broken hose clamps.

(2) When checking the operation of thevacuum system on a truck or truck-tractor,
the trailer shutoff valves must be closed.
When checking the operation of the vacuum
system on a trailer or semitrailer, the trailer
must be coupled to a truck or a truck-tractor
with the trailer shutoff valve open. The
engine of the truck-tractor should be allowed
to run for one minute to build up vacuum.
Visually inspect system for collapsed,
broken, badly chafed, and improperly
supported hoses and tubes, and loose or
broken hose clamps.

(3)(4) On truck or truck-tractor, depress brake

pedal with moderate foot force. Whilemaintaining this force on the pedal, startengine, and observe if pedal falls slightly
when engine starts.

(5) On trucks with low vacuum indicatorsbuild full vacuum. Shut off engine andreduce vacuum by making a series ofmoderate brake applications. A flashing or
buzzing signal shall function when vacuum
reaches eight inches mercury.

(6) Apply and release pedal a number oftimes and observe action on brake chamberrod on trailers.

a. Inspect for and reject if:
a. Brake System does not meet therequirements for stopping distance for theclass of vehicle; the service brakes do notdevelop the required total braking force as
determined by machine tests; or the service
brakes are not equalized as determined fromroad or machine testing of the vehicle.
b. Absence of braking action, on any axle

required to have brakes, upon application of
the service brakes (such as missing brakes orbrake shoe(s) failing to move upon
application of a wedge, S-cam, cam, or discbrake).
c. Missing or broken mechanical components

including: shoes, linings, pads, springs,
anchor pins, spiders, cam rollers, push rods,
and air chamber mounting bolts.

See the Brake System Diagrams to Assist with
Identifying the Component Parts of CMV Brake
Systems:

ii

THE DISC BRAKE
lf'><.-s two f2) br'l;!kc P,,tl$ p111d1cd a(ftl111sl" rol>1 11g tl1SC o, 10\rn.

DISC 8 KE, SIDE VIEW

jThis pmilicular d'lsc is from a
1:1 rat.1llc 'l stem.

EXAMPLE DliSC BRAKE(This par'licular disc is flr,om anairs 'ltem.

n!E WEDGE BRAKE
Uses ., w"'1J'ge forced be!¥reeri two {2) bu:lke ,11065 to e.xpt111tl \he, sJ;oe, !ilqairr.;I thed,um.

Steering axles: Lining with a thickness lessthan ¼ inch at the shoe center for air drumbrakes, 1/16 inch or less for hydraulic disc andelectric drum brakes, and less than 1/8 inch for
air disc brakes.

4)

Loose brake components including air
chambers, spiders, and cam shaft support brackets.

d.

Audible air leak at brake chamber (e.g., ruptured
diaphragm, loose chamber clamp, etc.).

e.

Readjustment limits. Any brake beyond thereadjustment limit shall be cause for rejection.
Stroke shall be measured with the engine off and an
air pressure reservoir of 80 to 90 psi. (Refer toAnnex #2 for readjustment limits)f.

h. Missing brake on an axle required to havebrakes.
i. Mismatch across any power unit steering axle of:1) Air chamber sizes.
2) Slack adjuster length.
j. Parking Brake System - The parking brakeg.

Brake linings or pads:
1) Lining or pad is not firmly attached to theshoe.

2) Saturated with oil, grease, or brake fluid.

Non-steering axles: Lining with athickness less than ¼ inch at the shoe center for
air drum brakes, 1/16 inch or less at the shoe
center for hydraulic disc and electric drumbrakes, and less than 1/8 inch for air discbrakes.

3)

system shall be adequate to hold the vehicle or
combination on any grade upon which it is operated
under any condition of loading, on a surface freefrom ice and snow. The parking brake system shallbe capable of being applied by the driver’s musculareffort or by spring action. The parking brake system
may be assisted by the service brakes or other sourceof power, provided that failure of the service brakes
or other power assisting mechanisms will not preventthe parking brake system from being applied. The
parking brake system shall be so designed that whenapplied, it shall remain in the applied position despite
exhaustion of any source of energy or leakage ofany kind. If the means of applying the parking brakeand the service brake are connected in any way, theyshall be so constructed that failure of any one partshall not leave thevehicle without operative brakes. Brake locksystems will not meet the parking brakerequirement (i.e. placing the transmission in park).
1. Inspection Procedure. Apply only the parking

brake system. Verify that brakes are applied on thevehicle or combination upon actuation of the parking
brake control.

2. Inspect Parking Brake for and reject if:
a. Vehicle is not equipped with a parking brake.
b. Operating mechanism, when fully applied, does

not hold the brakes in applied position withoutmanual effort.

c. Actuating mechanism is not fully released when

the release control is operated.

d. Any mechanical parts are missing, broken,
badly worn, or not operating properly.
e. Pull cables are badly worn, stretched, frayed, or
not operating freely.
f.
Parking brake will not hold the vehicle inplace when, with the engine running, the vehicle
is placed in forward gear and the engine isaccelerated enough to cause a pull on the braking
mechanism.

2) Bulge or swelling when air pressure isapplied.

3) Any audible leaks.
4) Two hoses improperly joined (such as asplice made by sliding the hose ends over a
piece of tubing and clamping the hose to thetube).

5) Air hose cracked, broken, or crimped.

m. Brake Tubingk. Brake Drums or Rotors

Inspect Brake Drum or Rotors and reject if:
1) Any external crack or cracks that open

upon brake application (do not confuse shorthairline heat related cracks with flexural cracks).
2) Any portion of the drum or rotor is missing

or in danger of falling away.

Inspect Brake Tubing and reject if:
1) Any audible leak.
2) Tubing cracked, damaged by heat, broken, or

crimped.

n. Low Pressure Warning Device. Before March

1, 1975, vehicles may have either an audible orvisible warning device. On or after March 1, 1975
vehicles must have a visible device and may also
have an audible warning. Gauges alone are notacceptable as warning devices.
Inspect Low Pressure Warning Device andreject if:
1)l. Brake Hose

Inspect Brake Hose and reject if:
1) Hose with any damage extending through theouter reinforcement ply. (Rubber impregnatedfabric cover is not a reinforcement ply.
Thermoplastic nylon may have braid
reinforcement or color difference between coverand inner tube. Exposure of second color iscause for rejection).

Missing, inoperative, or does not operate at
55 psi and below, or 1/2 the governor cutout pressure, whichever is less.

q. Electric Brakeso. Tractor Protection Valve

Inspect Tractor Protection Valve and reject if:
1) Inoperable or missing tractor protection

valve(s) on power unit.

p. Air Compressor/Air Reservoir System

Inspect Air Compressor/Air Reservoir System andreject if:
Compressor drive belts in condition ofimpending or probable failure.

1)2) Loose compressor mounting bolts.
3) Cracked, broken, or loose pulley.

Inspect Electric Brakes and reject if:
1) Absences of braking action on any wheel

required to have brakes.

2) Missing or inoperable breakaway braking

device.

r. Hydraulic Brakes. (Including Power Assist Over

Hydraulic and Engine Drive Hydraulic Booster)
Inspect Hydraulic Brakes and reject if:
1) Master cylinder less than ¼ full.

2) No pedal reserve with the engine running

except by pumping pedal.

Cracked or broken mounting brackets,braces, or adaptors.

3) Power assist unit fails to operate.

5) Compressor air intake cleaner is clogged

application of pressure.

4)

sufficiently to prevent the proper intake of air.

4) Seeping or swelling brake hose(s) under5) Missing or inoperative check valve.

6) Time required building up air pressure from50 to 90 psi takes more than 3 minutes with theengine running a fast idle.

6) Has any visually observed leaking

7) Compressed air reservoir is insufficient to7) Has hydraulic hose(s) abraded (chafed)
through the outer cover-to-fabric layer.

permit one full service brake application withthe engine stopped, and with the system fully
charged, without lowering the reservoir pressure
more than 20% below the initial air pressure
reading.
8) Governor cut-in pressure lower than 80 psi or

cut-out pressure higher than 135 psi, unlessother values are recommended by the vehicle
manufacturer.

9) Air reservoir pressure drop of more than 2 psiin 1 minute for a single vehicle or more than 3
psi in 1 minute for vehicle combinations with theengine stopped and the service brake released.
10) Air reservoir pressure drop of more than 3

psi in 1 minute for a single vehicle or more than
4 psi in 1 minute for vehicle combinations withthe engine stopped and the service brakes fully
applied.

hydraulic fluid in the brake system.

8) Fluid lines or connections leaking,restricted, crimped, cracked, or broken.
9) Brake failure or low fluid warning light on

or inoperative.

s. Vacuum Systems

Inspect Vacuum Brakes and reject if:
1) Has insufficient vacuum reserve to permit
one full brake application after the engine isshut off.
2) Has vacuum hose(s) or line(s) restricted,
abraded (chafed) through outer cover to cordply, crimped, cracked, broken, leaking or
has collapse of vacuum hose(s) when vacuum isapplied.
3) Lacks an operative low-vacuum warning

device as required.

1. Inspection Procedures (Refer to Annex #3 for
15.4

Clearance Lamps

Clearance lamps are required on all:1) Buses 80 inches or more in overall width.
2) Trucks 80 inches or more in overall width.
3) Trailers and semitrailers 80 inches or morein overall width.
4) Trailers and semitrailers 30 feet or
more in overall length.
5) Pole trailers.
Clearance lamps shall, so far as is practicable, bemounted on the permanent structure of the vehicle insuch a manner as to indicate the extreme height andwidth of the vehicle. Mounting exceptions forclearance lamps are as follows:
1) On a truck tractor, clearance lamps mounted
on the cab may be located to indicate the widthof the cab, rather than the width of the vehicle.
2) On a trailer, the front clearance lamps may

be mounted at a height below the extreme
height if mounting at the extreme height resultsin the lamps failing to mark the overall widthof the trailer.

3) When the rear identification lamps aremounted at the extreme height of a vehicle, rearclearance lamps are not required to be locatedas close as practicable to the top of the vehicle.
Clearance lamps and side marker lamps may be
mounted in combinations, provided illumination is
given as required by law.
Clearance lamps mounted on the front or on the sides
near the front of a vehicle shall display an amber color.
Clearance lamps mounted on the rear or on the sides
near the rear of a vehicle shall display a red color.
Clearance lamps shall be visible under normal
atmospheric conditions at a distance between 500
feet and 50 feet from the vehicle on which mounted.
On buses and trucks 80 inches or more in overall width
and trailers and semitrailers 80 inches or more in
overall width:
1) On the front, two clearance lamps.
2) On the rear, two clearance lamps.

lighting diagrams):

a. Check operation and condition visually.
2. Inspect for and reject if:
a. Lamps are not present.
b. Lamps are not securely mounted,

properly located, or repaired with repair tapeor repair kit.

c. Lamps do not emit required color; lensor bulb painted; or not steady burning.
d. Visibility requirements are not met. LED
lights have less than 50% of diodes
illuminated.
e. Lens is discolored, missing, or a portion of thelens is missing.

f. Wiring insulation is worn, rubbed bare, orshows any evidence of burning, shortcircuiting, or poor electrical connections.

g. Lens is cracked.
h. Any lamp assembly is cracked allowing
water to enter or the lamp assembly contains
standing water.

15.5

Coupling Devices

A. Inspect Fifth Wheel for and reject if:
1)

Mounting to Frame:
Any fasteners missing or ineffective.
Any movement between mounting
components.
c. Any mounting angle iron cracked or
broken.
a.
b.

2)

3)

Mounting Plates and Pivot Brackets:
Any fasteners missing or ineffective.
Any welds or parent metal cracked.
More than 3/8 inch horizontal movement
between pivot bracket pin and bracket.
d. Pivot bracket pin missing or not secured.

a.
b.
c.

Sliders:a. Any latching fasteners missing or
ineffective.
b. Any fore or aft stop missing or notsecurely attached.
c. Movement more than 3/8 inch between
slider bracket and slider base.
d. Any slider component cracked in parent
metal or weld.

1) Lower Coupler:a. Horizontal movement between the upper andlower fifth wheel halves exceeds ½ inch.

b. Operating handle not in closed or locked

position.

c. Kingpin not properly engaged.
d. Separation between upper and lower coupler

allowing light to show through from side to side.

e. Cracks in the fifth wheel plate.

(Exceptions: Cracks in fifth wheel approach
ramps and casting shrinkage cracks in the ribsof the body of a cast fifth wheel.)f. Locking mechanism parts missing, broken,

or deformed to the extent the kingpin is notsecurely held.

B. Inspect Pintle Hooks for and reject if:
1) Mounting to Frame:a. Any missing or ineffective fasteners (afastener is not considered missing if there is anempty hole in the device but no corresponding
hole in the frame or vice versa).
b. Mounting surface cracks extending frompoint of attachment (e.g., cracks in the frame at
mounting bolt holes).
c. Loose mounting or frame crossmember
providing pintle hook attachment cracked.
2) Integrity:
a. Cracks anywhere in pintle hook assembly.
b. Any welded repairs to the pintle hook.
c. Any part of the horn section reduced by morethan 20%.

d. Latchun secure.

E. Inspect Safety Devices for and reject if:
a. Safety devices missing.
C. Inspect Drawbar/Towbar Eye for and reject if:
1) Mounting:a. Any cracks in attachment welds.
b. Any missing or ineffective fasteners.
2) Integrity:a. Any cracks.
b. Any part of the eye reduced by more than20%.
D. Inspect Drawbar/Towbar Tongue for and reject if:
1) Slider (Power or Manual):a. Ineffective latching mechanism.
b. Missing or ineffective stop.
c. Movement of more than ¼ inch between
slider and housing.

b. Unattached or incapable of secureattachment.

c. Chains and hooks:
1) Worn to the extent of ameasurable reduction in link crosssection.
Improper repairs including welding,wire, small bolts, rope, and tape.

2)d. Cable:1) Kinked or broken cable strands.
2) Improper clamps or clamping.
F. Inspect Saddle-Mounts for and reject if:
1) Method of Attachment:

a. Any missing or ineffective fasteners.
b. Loose mountings.

d. Any leaking air or hydraulic cylinders,hoses, or chambers (other than slight oil
weeping that is normal with hydraulic seals).

c. Any cracks or breaks in a stress or loadbearing member.

2) Integrity:d. Horizontal movement between upper andlower saddle-mount halves exceeds ¼ inch.

a. Any cracks.
b. Movement of ¼ inch between subframe anddrawbar at point of attachment.

15.6

Exhaust System

A. Exhaust Emission System. The owner or

operator of any new motor vehicle or new motor
vehicle engine, beginning with model year
1968, equipped with an exhaust emission systemshall maintain the exhaust emission system ingood operable condition.
The owner or operator of the motor vehicle or
motor vehicle engine shall not remove or
intentionally make inoperable within the State ofTexas the exhaust emission system or any part
thereof, except where the purpose of removal of
the exhaust emission system or part thereof is toinstall another exhaust emission system or part
thereof, which is intended to be equally effective
in reducing atmospheric emissions from thevehicle or engine.
The exhaust emission system was installed bymanufacturers of motor vehicles beginning withmodel year 1968. The inspection of the exhaustemission system will apply only to those vehicles
that are equipped with such a system. The following
exhaust emission systems will be inspected if
installed as original equipment by the manufacturer:
thermostatic air cleaner (including flexible tubing),
exhaust gas recirculation system, positive
crankcase ventilation system, air injection system,
evaporative emission system, and/or catalytic
converter.
If installed as original equipment by the
manufacturer, the catalytic converter will beconsidered a part of the exhaust emission system on
all 1984 and later model vehicles. It will beinspected as a part of the exhaust system on prior
to 1984 model vehicles, but only visually inspected
for leakage. On 1984 and later model light truck
and passenger vehicles, the catalytic converter will bechecked for presence and leakage. Some diesel
engines are equipped from the manufacturer withcatalytic converters. The catalytic converter on thesevehicles will also be inspected for presence and leaks
only.
The inspection of the exhaust emission system shallnot apply to motor vehicles altered and modified touse only a fuel other than gasoline.
1. Inspection Procedure. Examine visually and rejectif:a. The exhaust emission system has been
removed.
b. The exhaust emission system has been

disconnected.
c. The plumbing or hoses are loose, broken,
leaking, or improperly routed.
d. Air pump (air injection-type) belt is loose,removed, excessively cracked, frayed or has
pieces missing.
e. The exhaust emission system has beenaltered in any manner to make it ineffective.
f. The catalytic converter has been removed,
leaking, or disconnected on a 1984 or latermodel vehicle.
B. Exhaust System. Every motor vehicle shall at

all times be equipped with a muffler in goodworking order and in constant operation.

Muffler defined: A muffler is a device consisting ofa series of chambers or baffle plates or othermechanical design for the purpose of receiving
exhaust gas from an internal combustion engine
and/or turbine wheels for the purpose of receiving
exhaust gas from a diesel engine, both of which are
effective in reducing noise.
On vehicles manufactured or equipped with amuffler and a turbo, the muffler must be present andin good working order.
The exhaust system includes the manifolds, gaskets,
exhaust lines, mufflers, resonators, tail piping, andsupporting hardware.
Motor vehicles cannot be equipped with a muffler
which is perforated or which was perforated and has
been repaired, either by a muffler repair jacket or by
patching or in any other way. In those cases where amuffler is perforated at the time of an inspection or
has been perforated and has been repaired previous
to the inspection, the muffler must be replaced or thevehicle rejected.
Some pickups are equipped with a camper or hardshell cover and are sometimes used for thetransportation of passengers. The tailpipe should
discharge the exhaust at the rear or sides. This truck
modification will be considered as a passenger
compartment.
The entire structure of a passenger vehicle or a motor
home-type vehicle is considered a passenger
compartment. The cab only of all other trucktype vehicles is considered a passenger or luggage
compartment.
If the vehicle is equipped with lake pipes orsimilar devices, such pipes or devices must be
securely plated and bolted or capped.

j. The tailpipe fails to discharge exhaust from

Dual exhaust systems may be modified to single
exhaust systems and single exhaust systems todual exhaust systems provided the modification
does not violate requirements concerning exhaustemission systems.

the rear or sides or top of the passenger
compartment of the vehicle.

k. Any exhaust system determined to be leaking

at a point forward of or directly below thedriver/sleeper compartment.

Inspection of exhaust systems covers the discharge of
exhaust fumes and is not concerned with the noiselevel.

l. A bus exhaust system leaking ordischarging to the atmosphere:

Holes in the exhaust system made by the
manufacturer for drainage are not cause for rejection.
The tailpipe must direct the exhaust fumes out fromunder the passenger compartment.

(1) Gasoline powered – excess of 6
inches forward of the rearmost part of thebus.
(2) Other than gasoline powered – in excess

On pickups not equipped with a camper or hard shellcover, holes or leaks in the tailpipe extending beyond
the passenger compartment will not be cause forrejection.

of 15 inches forward of the rearmost part ofthe bus.

(3) Other than gasoline powered – forward

of a door or window designed to be opened(exception: emergency exits).

1. Inspection Procedure. The exhaust system shall be

examined visually while the engine is running todetermine efficiency of the system.

m. No part of the exhaust system of any motor
vehicle shall be so located as would be likely
to result in burning, charring, or damaging theelectrical wiring, the fuel supply, or any
combustible part of the motor vehicle.

2. Inspect for and reject if:
a. Vehicle is not equipped with amuffler.

b. Any joint is loose or leaking, including

manifolds. Does not include minor leakage at
exhaust control valve (manifold damper or heatriser valve).

15.7

FramesA. Inspect for and reject if:

Manifold is cracked or broken causing
leakage.

1) Frame Members:d. Holes, leaking seams, or patches on theframe members.

c.

muffler, resonators, exhaust pipe, tailpipe, or
catalytic converter.
e. Exhaust system is not secured to the vehicle

by mounting brackets designed for exhaustsystems (wire is not acceptable).

f. Any brackets are loose, broken, or missing.
g. There is excessive vibration of exhaust line.
h. Any part of the exhaust system passes
through the passenger compartment.
i. The tailpipe is broken, pinched, or eroded

off to the extent to allow exhaust fumes topenetrate into the interior of the passenger
compartment.

a. Any cracked, broken, loose, or sagging
b. Any loose or missing fasteners including
fasteners attaching functional component suchas engine, transmission, steering gear,
suspension, body parts, and fifth wheel.
2) Tire and Wheel Clearance:a. Any condition, including loading thatcauses the body or frame to be in contact with atire or any part of the wheel assembly.
3)
Adjustable Axle Assemblies (Sliding
Subframe):a. Adjustable axle assembly with locking
pins missing or not engaged on.

15.9

Hazard Warning Lamps

Every bus, truck, and truck-tractor shall beequipped with a signaling system that, in addition
to signaling turning movements, shall have aswitch or combination of switches that will cause
the two front turn signals and the two rear signals,
including the turn signal lamps on any attachedtrailer, to flash simultaneously as a vehicular traffic
warning. The system shall be capable of flashing
simultaneously with the ignition of the vehicle on oroff.
1.
Inspect for and reject if (Refer to Annex#3 for lighting diagrams):
a. Lamps are not present or operational.
b. Not securely mounted, properly located, or

repaired with repair tape or repair kit.

c. Lamp does not emit proper color (Front –Amber; Rear – Amber or Red); lens or bulb
painted.

d. Lens cracked, broken, discolored, missing, or

portion of the lens is missing.

e. Wiring insulation is worn, rubbed bare, or

evidence of burning, short circuiting, or poorconnection.

15.8

Fuel System

any point.

f. Visibility requirements not met (At least 80
inches wide – 500 feet to the front and rear;less than 80 inches wide – 300 feet to the front
and rear). LED lights have less than 50% of
diodes illuminated. Lamp height is less than 15
inches or more than 72 inches.

b. A fuel tank filler cap missing.

g. Any lamp assembly is cracked allowing water

1. Inspect for and reject if:
a. A fuel system with a visible leak at

c. A fuel tank not securely attached to themotor vehicle by reason of loose, broken
or missing mounting bolts or brackets(some fuel tanks use springs or rubberbushing to permit movement).
d. Every applicable gasoline-powered

vehicle from 2-24 years old will also bechecked in accordance with Chapter 4 todetermine if the gas cap is defective.

to enter or lamp assembly contains standing
water.

15.10The four head lamp system must be wired to burnas originally designed.

Head Lamps

d. Other lamps: Fog lamps, auxiliary passing

1. Motor Vehicles. Every motor vehicle shall beequipped with at least two head lamps, at least one
on each side of the front of the motor vehicle,
which head lamps shall comply with therequirements and limitations set forth in theseregulations.

lamps, auxiliary driving lamps, and parking
lamps are not required to be inspected.

4. Headlight Identification:a. Sealed Beam Lamps: Glass headlamps

whether round or rectangular and marked with a#1 or #2 which indicates the number offilaments in the headlamp. Sealed BeamLamps
are a one piece unit with a non-replaceable
inner bulb.

Every head lamp upon a CMV shall be located ata height of not more than 54 inches nor less than
24 inches to be measured from the center of suchlamp to the level ground upon which the vehicle
stands when such vehicle is without a load.
2. Motorcycles, Motor-Driven Cycles, Mopeds.
Every motorcycle, motor-driven cycle, and moped
shall be equipped with at least one and not morethan two head lamps which shall comply with therequirements and limitations of these regulations.

b. Composite Head Lamps: Consist of a lens,

usually contoured to the grill and fenders of thevehicle, a reflector, and one or two halogen
bulbs, and marked DOT or SAE on the lamp
housing or the bulb. The bulb on this type ofheadlamp is replaceable.

3. General Provisions. All motor vehicles
including motorcycles sold new after January 1,
1948, other than motor-driven cycles (motor scootersand motorbikes), must be equipped with multiple
beam head lamps. Single beam head lamps will bepermitted on those vehicles sold new prior to January
1, 1948, and on all motor-driven cycles (motor
scooters, motorbikes, and mopeds).

c. Projection Head Lamps: Consist of a lens,

usually contoured to the grill and fenders ofthe vehicle, a reflector, and one bulb with aprojection lens.

d. High Intensity Discharge (HID) Head

Lamps: Produce light via an electric arc
rather than through a glowing filament.
Aftermarket HID bulbs installed incomposite headlamps are illegal and will
not pass state inspection.

There shall be an uppermost distribution of light orcomposite beam, so aimed and of such intensity as toreveal persons and vehicles at a distance of at least
450 feet ahead for all conditions of loading(motorcycles, motor-driven cycles, and mopeds at a
distance of at least 300 feet).

e. Head lamps approved for use on

motorcycles and motor-driven cycles cannot
be used on an automobile or truck and viceversa.

There shall be a lowermost distribution of light orcomposite beam, so aimed and of sufficient intensity
to reveal persons and vehicles at a distance of atleast 150 feet ahead.

f. On motorcycles, motor-driven cycles, andmopeds without batteries, the engine should
be run at high idle speed to observe
operation of head lamp.

Single beam head lamp: A head lamp which
provides only one fixed beam, which is not
adjustable from the driver’s seat (usually on
motor-driven cycles and mopeds only).

4. Preparation for Head Lamp Inspection.

Multiple beam head lamp: A head lamp
which provides more than one beam, which may
be selected as required from the driver’s seat.

5.

a.

b.

Dual head lamp system: Those vehicles using
the dual or four head lamp system must be
equipped with a combination of a #1 and a #2
type head lamps on each side of the vehicle.
The use of any other type of lamp in thosesockets is illegal and does not meet theinspection requirements for head lamps.

c.

a. Clean head lamp lenses, if necessary.

Inspection Procedure. Check operation andcondition. (Refer to Annex #3 for lighting diagrams)

a.

Sealed Beam Head Lamps
will be inspected and rejected if:(1) Lamp or Lamp assembly is not securely

fastened to the vehicle. Lamp can beeasily moved by hand, due to broken fenderor loose support(2) Lamp is improperly connected or does

not light the proper filament for different
switch positions.

(3) Lamps lens is cracked, broken, discolored,

or missing.

(4) Lamp is not of a type meeting

Department, DOT, or SAE standards.

(5) Wiring insulation is worn, rubbed bare,or shows any evidence of burning, shortcircuiting, or poor electrical connections.
Wiring is dangling or connections are loose.
(6) Lamp lens is rotated, upside down, canted,(17) Retractable Lamps: Must fully open andlock in position.
b. Composite Head Lamps

will be inspected for and rejected if:(1) Lamp or lamp assembly is not securely
fastened to the vehicle. Lamp can be easily
moved by hand, due to a broken fender or loose
support.
(2) Lamp is improperly connected or does notlight the proper filament for the different switch
positions.
(3) Lamp lens is broken, missing, ordiscolored.

(4) Lamp is not of a type meeting Department,
DOT, or SAE standards.
(5) Wiring insulation is worn, rubbed bare, orshows any evidence of burning, short circuiting,or poor electrical connections. Wiring is dangling
or connections are loose.

or is marked “Right”, “Left”, #1, or #2 andis not installed as marked.

(6) Lamp lens is rotated, upside down, or(7) Lamp fails to function properly in any

manner, such as any filament in a head lampthat fails to burn.

(7) Lamp fails to function properly in any
manner, such as any filament in a head lampthat fails to burn.

(8)

Lamp has dirt, any contamination,
discoloration, or moisture on the inside.

(8) Lamp has dirt, standing water, ordiscoloration inside.

(9) Lamp switch or dimmer switch does not(9) Lamp switch or dimmer switch does not(10) Foreign material placed on the headlamp
lens, such as shields, paint, tape, tinting, etc…
that interferes with light beam of the lamp.

(10) Foreign material placed on headlamp

operate properly or is not conveniently
located for the driver.

(11) Vehicle is not equipped with head lamps

as required or lamp is missing

canted.

operate properly or is not conveniently
located for the driver.

lens, such as shields, paint, tape, tinting,
etc… that interferes with the light beam of thelamp.

(11) Headlamp is covered by any lens or(12) Lamp or lens is other than clear.

cover located in front of the headlamp which
is any shade of color other than clear.

(13) Headlamps are not of equal intensity.

(12) Vehicle is not equipped with headlamps(14) Headlamps are mounted more than or lessas required or lamp is missing.

than the prescribed mounting heights.

(13) Lens is other than clear.

(15) Lamp is covered by any lens or cover(14) Headlamps are not of equal intensity.

located on the front of the headlamp which is
any shade of color other than clear.

There is physical damage that would
obviously cause the headlamps to fail to
illuminate the roadway ahead of the vehicle.
(16)(15) Headlamps are mounted more than or lessthan prescribed mounting heights.

(15) Headlamps are mounted more than or less thanprescribed mounting heights.

There is physical damage that would
obviously cause a headlamp beam to fail to
illuminate the roadway ahead of the vehicle
sufficiently.
(16)(16) There is physical damage that would
obviously cause a headlamp beam to fail to illuminate
the roadway ahead of the vehicle.

(17) Retractable lamps: must fully open andlock in position.

(c). Projection Head Lamps
will be inspected for and rejected if:(1) Lamp or lamp assembly is not securely

fastened to the vehicle. Lamp can be easily
moved by hand, due to a broken fender or loose
support.

Lamp is improperly connected or does notlight the proper filament for the different switch
positions.

(2)(3) Lamp lens is broken, missing, or discolored.
(4) Lamp is not of a type meeting Department,

DOT, SAE standards.

(5) Wiring insulation is worn, rubbed bare, orshows any evidence of burning, short circuiting, orpoor electrical connections. Wiring is dangling or
connections are loose.
(6) Lamp lens is rotated, upside down, or canted.
(7) Lamp fails to function properly in any

manner, such as any filament in a head lamp thatfails to burn.
(8) Lamp has dirt, standing water, ordiscoloration inside.
(9) Lamp switch or dimmer switch does not operateproperly or is not conveniently located for thedriver.

(10) Foreign material placed on headlamp lens,such as shields, paint, tape, tinting, etc… thatinterferes with the light beam of the lamp.

(11) Headlamp is covered by any lens or coverlocated in front of the headlamp which is any
shade of color other than clear.

(12) Vehicle is not equipped with headlamps as(17) Retractable lamps: must fully open and lock inposition.

(d).

High Intensity Discharge Head Lamps
will be inspected for and rejected if:(1) Lamp or lamp assembly is not securely
fastened to the vehicle. Lamp can be easily
moved by hand, due to a broken fender or loose
support.
(2) Lamp is improperly connected or does notlight the proper bulb for the different switch
positions.
(3) Lamp lens is broken, missing, or discolored.
(4) Lamp is not of a type meeting Department,

DOT, SAE standards.

(5) Wiring insulation is worn, rubbed bare, orshows any evidence of burning, short circuiting, orpoor electrical connections. Wiring is dangling or
connections are loose.
(6) Lamp lens is rotated, upside down, or canted.
(7) Lamp fails to function properly in any
manner.
(8) Lamp has dirt, standing water, ordiscoloration inside.
(9) Lamp switch or dimmer switch does not operateproperly or is not conveniently located for thedriver.

(10) Foreign material placed on headlamp lens,such as shields, paint, tape, tinting, etc… thatinterferes with the light beam of the lamp.

(11) Headlamp is covered by any lens or coverlocated in front of the headlamp which is any
shade of color other than clear.

(12) Vehicle is not equipped with headlamps as

required or lamp is missing.

required or lamp is missing.

(13) Lens is other than clear.

(13) Lens is other than clear.

(14) Headlamps are not of equal intensity.

(14) Headlamps are not of equal intensity.

15.12 Identification Lamps(15) Headlamps are mounted more than or lessthan prescribed mounting heights.
(16) There is physical damage that would
obviously cause a headlamp beam to fail to
illuminate the roadway ahead of the vehicle.
(17) Retractable lamps: must fully open and lockin position.
15.11 Horn

Every motor vehicle shall be equipped with a horn(electric or air) in good working order and capable ofemitting a sound audible for a distance of 200 feet or
more, but no horn shall emit an unreasonably loud or
harsh sound or a whistle.
Bulb or hand-operated horn is acceptable if
original vehicle equipment.

All buses, trucks, and truck-tractors 80 inches or morein overall width must be equipped with threeidentification lamps of amber color mounted on thecab of the vehicle, one as close to the vertical centerline of the vehicle as practicable and one on each sideof the center line, not less than 6 inches or more than
12 inches.
All buses, trucks, and trailers 80 inches or morein overall width must be equipped with threeidentification lamps of red color mounted on therear of the vehicle as high as practicable. One
mounted as close as possible to the center line of thevehicle and one on each side of the center line of notless than 6 inches or more than 12 inches.
1. Inspect for and reject if: (Refer to Annex #3 forlighting diagrams)
a. Lamps are not present.
b. Not securely mounted, properly located

1. Inspection Procedure:or repaired with repair tape or repair kit.

a. Sound horn.

c. Lamp does not emit proper color; lens or

b. Check actuating device.
c. Examine wiring - mounting.
2. Inspect for and reject if:

bulb painted; or not steady burning.

d. Lens cracked, broken, discolored, missing,or a portion of the lens is missing.

e. Wiring insulation is worn, rubbed bare, ora. Vehicle is not equipped with a horn.

evidence of burning, short circuiting, orpoor connectionb. Horn or horn switch is not securely fastened.

f. Lamps are not clearly visible in normalc. Wiring insulation is worn, rubbed bare, orshows any evidence of burning, shortcircuiting, or poor connections.

d. Horn switch not readily accessible tovehicle operator.

e. Horn is actuated by grounding two bare wires

or similar method.

f. Sound is not audible under normal

conditions for 200 feet.

g. Horn emits an unusually loud or harsh soundor whistle.

h. Operation of the horn interferes with theoperation of any other circuit.

i. Horn switch missing or inoperative.

sunlight. LED lights have less than 50% of
diodes illuminated.

g. Any lamp assembly is cracked allowing

water to enter or any lamp assembly contains
standing water.

15.13 License Plate Lamp

Either a tail lamp or a separate lamp shall be
so constructed and placed as to illuminate with awhite light the rear registration plate and render itclearly legible for a distance of 50 feet to the rear.
Any such lamp shall be so wired as to be lighted
when the head lamps or auxiliary driving lamps arelighted. On vehicles such as truck-tractors which
require no rear registration plate, a license plate
lamp would not be required. If two license plates
are issued, a license plate lamp is required.
Do not reject a vehicle because the rear registration
plate is obstructed.
1. Inspection Procedure. Check operation andcondition visually.

2. Inspect for and reject if: (Refer to Annex #3 forlighting diagrams)

a. Lamp is not present, steady burning, or

operational. LED lights have less than 50% of
diodes illuminated.
b. Lamp is not securely mounted to thevehicle.

c. Lamp is not placed to illuminate with a whitelight, the rear registration plate. (Only one lamp
is required.)d. Wiring insulation is worn, rubbed bare,or shows any evidence of burning, shortcircuiting, or poor electrical connections.

e. Lamp is not wired so as to be lighted whenhead lamps or auxiliary driving lamps arelighted.
f. Lamp emits a glaring light to the rear.

g. Lens is cracked or repaired with repair tape orrepair kit. Lens or a portion of the lens is
missing.

h. Lamp assembly is cracked allowing waterto enter or the lamp assembly contains
standing water.

i. Lamp does not meet the visibility

requirement.

Mirrors

15.14

Every bus, truck, and truck-tractor shall be equippedwith two rear-vision mirrors, one at each side, firmly
attached to the outside of the motor vehicle, and solocated as to reflect to the driver a view of 200 feet to
the rear, along both sides of the vehicle.
Only one outside mirror shall be required, which shallbe on the driver’s side, on trucks which are soconstructed that the driver has a view to the rear bymeans of an interior mirror.
In driveaway-to waway operations, the driven
vehicle shall have at least one mirror furnishing aclear view to the rear.
1. Inspect for and reject if:
a. Proper number of mirrors not present
b. Mirror does not provide clear view to rearof 200 feet.

Mirror creates interference with driver’s
forward vision.

c.

d. Reflective surface of mirrors is cracked,
broken, peeled, tarnished, or has sharp edges.
e. Mirror not mounted securely to prevent

swing or excessive vibration.

15.15 Reflective Sheeting/Reflex Reflectors Conspicuity System

Truck-tractors manufactured on or after July 1, 1997
and any trailer or semi-trailer manufactured on orafter December 1, 1993 that is 80 inches or morewide and 10,001 pounds or more GVWR, except
pole trailers and mobile office/housing trailers,
require conspicuity materials (retroreflective
sheeting and/or reflex reflectors meeting therequirements of FMVSS No. 108). If the GVWR
plate is not present on a trailer or semi-trailer,then an actual or registered weight of 10,001
pounds or more will apply. Trailers and semi-trailers
manufactured before December 1, 1993 are required
to be retrofitted with the conspicuity system, except
for pole trailers and mobile office/housing trailers.

Refer to Annex #4 for conspicuity system
requirement diagrams for trailer types and trucktractors.

2. Not properly placed or secured to the trailer
or proper colors used:a.

(1) the total length of the sections do not

Inspection Procedure. Inspect for proper
placement, coverage, and color of the conspicuity
system.
A.

equal to at least one half of the total lengthof the trailer.

(2) the placement is not reasonably evenly

1. Color combinations of red and white shall

distributed down the full length of thetrailer and as near the front and rear aspracticable.

be used, beginning with red or white, along
the sides and lower rear of the trailer.
2. The centerline for each reflective strip
shall be between 15 inches and 60 inches
above the road surface or as close aspracticable with the trailer empty.

b.

as practicable across the full rear of thetrailer.

manufacturer certification will consist of
one of the following markings:
Reflectors);(2) the placement is not as low aspracticable.

c. on the underside protection device, if
equipped:b. DOT – C2, 2 inch (50mm);(1) placed horizontally across the full widthof the device.

c. DOT – C3, 3 inch (75mm); or
d. DOT – C4, 4 inch (100mm).
B. Inspect for and reject if:

Trailer is not equipped withreflective sheeting, tape, or reflex
reflectors.

1.

on the lower rear, placed horizontally:(1) the total length does not extend as near

3. Must be an approved type. The

a. DOT – C (Rectangular Reflex

on each side placed horizontally:d.

on the upper rear:(1)
the placement is not as close aspracticable to the extreme outer and upper
dimensions of the trailer.
(2)
two pairs of white reflective sheetingor reflex reflectors, each section at least
12 inches long, must be positioned
horizontally and vertically on the right andleft upper corners of the rear of the body.
(3)
the reflective material is not whitein color.

3. Reflective material is excessively discolored,
deteriorated, or painted; to the extent the ability toreflect is substantially affected.

Every reflector upon any vehicle shall be of such sizeand characteristics and so mounted as to be visible atnight from all distances within 600 feet to 100 feetfrom such vehicle when directly in front of the lawful
lower beams of head lamps, except that reflectors on
passenger cars, motorcycles, and motor-driven cycles
manufactured or assembled prior to January 1, 1972,
shall be visible at night from all distances within 350
feet to 100 feet when directly in front of lawful upper
beams of the head lamps.

4. Truck-tractor is not equipped with reflective

sheeting as follows:a. Upper rear of the cab:
(1) Two pairs of white reflective sheeting or

reflex reflectors, each section at least 12 inches
long, must be positioned horizontally andvertically on the left and right upper cornersof the rear of the cab body.
(2) Lower rear of the truck tractor: Red

and white sheeting or reflex reflectors on themounting bracket of the safety guard (mudflap).

Reflectors on all motor vehicles shall be mounted at aheight of not less than 15 inches, nor more than 60
inches measured from the center of such reflector to
the level ground upon which the vehicle stands.
If the highest part of the permanent structure of thevehicle is less than the height required, the reflector
shall be mounted as high as that part of the permanent
structure will permit.
Rear reflectors on a vehicle shall reflect a red color.
Red reflectors required on the rear of a vehicle may
be incorporated with the tail lamp assembly.
Required rear reflectors shall be mounted with one oneach side of the center of the vehicle.
Rear reflectors on pole trailers may be mounted oneach side of the bolster or load.
Refer to Annex #3 for lighting diagrams.
1. Inspection Procedure. Check condition andmounting.
2. Inspect for and reject if:
a. Reflector is not present.
b. Reflector is not of red color.
c. Reflector is not properly and/or securely

15.16 Reflectors(Rear/Side)A. Reflectors (Rear). Every motor vehicle, trailer,

semitrailer, and pole trailer shall carry on the rear,either as a part of the tail lamps or separately, two or
more red reflectors. Motorcycles, motor-driven
cycles, and mopeds shall have mounted on the rear,either as a part of the tail lamp or separately, at least
one red reflector.

mounted to the vehicle.

d. Reflector is cracked to the extent that thereflecting ability is impaired.

Reflector is discolored, deteriorated, or
painted.

e.

f. Visibility distance is not as required.
g. Requirements shown on lighting diagram are

not met (Annex #3). Reflector heightrequirements are not met.

f. On pole trailers:
B. Reflectors (Side).

1) One amber reflector at or near the frontof the load (if loaded.)

1. Required on all:a. Buses 80 inches or more in overall width.
b. Trucks 80 inches or more in overall width.
c.
d.
e.
2.

3.

g. Trailers which are equipped with approved

conspicuity material (reflective sheeting) are notrequired to be equipped with the side reflex
reflectors required in this part if:

Trailers and semitrailers 80 inches or morein overall width.
Trailers and semitrailers 30 feet or morein overall length.
Pole trailers.

Every required reflector upon any of theabove described commercial vehicles shall beof such size and characteristics and somaintained as to be readily visible atnighttime from all distances within 600 feetto 100 feet from the vehicle when directly infront of the lawful lower beams of headlamps, except that the visibility for reflectors
on vehicles manufactured or assembled prior
to January 1, 1972, shall be measured in
front of lawful upper beams of head lamps.
Reflectors on commercial vehicles should be
mounted at a height of not less than 15
nor higher than 60 inches above the ground on
which the vehicle stands.
a. If the highest part of the permanent structure1) The conspicuity material is placed at thelocations where reflex reflectors are
required and2) The conspicuity material when installedon the trailer meets the geometric visibility
requirements for the reflex reflectors.
3) See Annex #4 for conspicuity
requirements.

Inspection Procedure. Check condition andmounting.

4.

5. Inspect for and reject if:
a. Reflectors are not present.
b. Reflectors are not of the required color forthe location on the vehicle.

c. Reflectors are not properly and/or

securely mounted to the vehicle.

d. Reflector is cracked to the extent that thereflecting ability is impaired.

of the vehicle is less than the height required,
the reflector shall be mounted as high as thatpart of the permanent structure will permit.

e. Reflectors are discolored, deteriorated, or

b. Reflectors mounted on the sides near thefront of a vehicle shall reflect an amber color.

diagram are not met (Annex #3). Reflector
height requirements are not met.

c. Reflectors mounted on the sides near the rearg. Visibility distance is not as required.

of a vehicle shall reflect a red color.

d. On buses and trucks 80 inches or more in

overall width and trailers and semitrailers 80
inches or more in overall width:

1) On each side, two reflectors, one at ornear the front (amber) and one at or near
the rear (red).
e. On trailers and semitrailers 30 feet or more in

overall length:1) On each side one amber reflector,
centrally located with respect to the lengthof the vehicle.

painted.

f. Requirements shown on lighting

15.17 Safety Guards or Flaps
A. Safety guards or flaps are required on alltrucks, trailers, or semi-trailers (in combination witha towing vehicle), if the rearmost axle of thevehicle (or combination) has at least four tires orat least two super single tires. A super single tire isa wide-base, single tire that may be used in place of
two standard tires on the same axle.

2. Inspect for and reject if:
a. Safety guard or flap is not present.
b. Safety guard or flap is not securely mounted.
c. Safety guard or flap is not as wide as the tires

that it is protecting.

d. Safety guard or flap is split or torn to theextent that it is ineffective.
e. The bottom edge of safety guard or flap ismore than twelve (12) inches from the surface ofthe roadway.
15.18 Seat Belts

Super Single Tires
Safety guards or flaps are not required on:
1) Buses;
2) Motor homes;
3) Pole trailers; or4) Truck-tractors.
Safety guards or flaps shall be located andsuspended behind the rearmost wheels of suchvehicle or if in combination behind the rearmost
wheels of such combination to within 12 inches ofthe surface of the roadway. Safety guards or flaps
shall be of metal, rubber, rubberized material, orother substantial material, capable of remaining inplace behind the rear wheels by their own weight
while the said vehicle is being operated.
When trailers and semitrailers are presented forinspection in combination, each trailer orsemitrailer will be considered a separate vehicle andsafety guards or flaps will be required on therearmost axle of each trailer or semitrailer.
1. Inspection Procedure. Check for presence andcondition.

A. Front seat belts are required on every motor
vehicle in which front seat belt anchorages were apart of the manufacturer’s original equipment on thevehicle.
Anchorages defined: A seat belt anchorage consistsof a threaded hole in a suitable structure to receive
the seat belt attachment fittings or a circular anchor
which is welded to the vehicle chassis. Self-treadingbolts are inserted into the anchor to form thecomplete seat belt anchorage assembly.
1. Inspection Procedure. Inspect front lap seat belts

for frayed, split, or torn webbing; malfunctioning
buckles; and loose or damaged anchorages to thefloor pan. Vehicles originally equipped with automaticseat belts (shoulder belts) without front lap seat belts
will have the automatic belts inspected.
Front lap belts only will be inspected in all othervehicles. The ignition seat belt interlock system is not
an item of inspection.

2. Inspect for and reject if:
a. Front lap seat belts are required and notpresent.

b. Seat belt webbing is frayed, split, or torn.
c. Belt buckles loose or inoperative.
d. Belt Anchorages or attachment fittings areloose, badly corroded, missing, or not
fastened to belt.

g. All trailers and semitrailers 30 feet or moree. All seat belt anchor bolts are notsecurely fastened to floor or are missing.

f. Pelvic restraint is not present.
g. Seat belt will not adjust to allow proper fit.
15.19 Side Marker Lamps
1. Required on all:

a)

b)
c)
d)

Buses 80 inches or more in overall
width. Trucks 80 inches or more in
overall width.
Trailers and semitrailers 80 inches or morein overall width.
Trailers and semitrailers 30 feet or morein overall length.
Pole trailers.

Side marker lamps shall, so far as ispracticable, be mounted on the permanent
structure of the vehicle in such a manner as
to indicate the length of the vehicle.

a.

b. Side marker lamps and clearance lamps

may be mounted in combination, provided
illumination is given as required bylaw.

c. Side marker lamps mounted on the front orin overall length are required to have mounted
centrally located with respect to the length ofthe vehicle:
1)

On each side, one amber side marker
lamp.

h. On pole trailers:
1) On each side, one amber side marker

lamp at or near the front of the load (ifloaded).

2) On the rearmost support for the load, one

combination marker lamp showing amber tothe front and red to the rear and side, orcluster of required color lamps.

2. Inspection Procedure. Check operation andcondition visually.

3. Inspect for and reject if: (Refer to Annex #3 forlighting diagrams)

a. Lamps are not present.
b. Lamps are not securely mounted, properly

located, or repaired with repair tape or repair kit.

c. Lamps do not emit required color; lens orbulb painted; or not steady burning.

on the sides near the front of a vehicle shalldisplay an amber color.

d. Visibility requirements are not met. LED

d. Side marker lamps mounted on the rear ore. Lenses are discolored, missing, or a
portion of the lens is missing.

on the sides near the rear of a vehicle shalldisplay a red color.

e. Side marker lamps shall be visible underlights have less than 50% of diodes illuminated.

f. Wiring insulation is worn, rubbed bare, orshows any evidence of burning, short circuiting,or poor electrical connections.

normal atmospheric conditions at a distance
between 500 feet and 50 feet from thevehicle on which mounted.

g. Lens is cracked.

f. On buses and trucks 80 inches or moreh. Any lamp assembly is cracked allowing water

1) Two side marker lamps, one on eachi. Requirements shown on lighting diagram are
not met (See Annex #3). Side marker lampheight requirements are not met.

in overall width and trailers and semitrailers
80 inches or more in overall width:side, one at or near the front and one at ornear the rear.

to enter or lamp assembly contains standing
water.

15.20 Steering Mechanism

The steering system of the vehicle must be
inspected to determine if excessive wear and/or
maladjustment of the steering linkage and/or
steering gear exists. Wear and adjustment of thesteering system will be checked by measuring lash.
The vehicle must be on a dry surface.

A.

Lash defined: Lash is the condition in which
the steering control can be turned through some partof a revolution without front wheel motion. The
wheels should be loaded and positioned straightahead.
Jamming defined: Jamming is any obstruction to
the turning of the steering control caused byinterference between some components of thesteering system. The obstruction would include
tires too large or damaged fenders that wouldinterfere with a full right or left turn.
B. Inspection Procedure. Lash or Free Play:With steering axle tires in straight ahead position,
turn steering wheel until the turning motion canbe observed at the steering axle tires. Measure lash.
On vehicles equipped with power steering theengine must be running.
C. Inspect for and reject if:
1)

Steering Lash (See Chart Below):

For steering wheel diameters not listed, thesteering wheel lash shall not exceed 14 degrees
angular rotation for manual steering systems and
30 degrees angular rotation for power steeringsystems.
2) Steering Column:
a. Any absence or looseness of U-bolt(s) or

position parts on steering column.

b. Worn, faulty or obviously repair welded

universal joint(s) on steering column.

c. Steering wheel not properly secured or notsecurely mounted to the steering shaft.
d. Tilt steering wheel fails to lock into position.
e. On vehicles equipped with flexible couplings,

or energy-absorbing steering columns, when it isobvious through a visual inspection of thevehicle that the column has been damaged and isin an unsafe condition, it should be rejected.

3) Steering System:a. It is impossible to turn the steering wheelfrom full right to full left without binding or
jamming other than at wheel stops.
b. Modification of the steering system so as toaffect the proper steering of the vehicle or
steering wheel has been modified or replacedwith one that is noticeably smaller than original
factory equipment.

c. Any modification or other condition thatinterferes with free movement of any steering
component.
d. Steering mechanism is not firmly

attached and free of frame cracks or missing
bolts.

e. On motorcycles and motor-driven cycles,

Steering Wheel
Diameter

Manual Steering
SystemPower Steering
Systemhandlebars or steering head is bent, loose,broken or damaged so as to cause unsafe
condition in steering.

Front Axle Beam and All Steering
Components Other than Steering Column:
a. Any crack or obvious welded repair(s).

4)

5) Steering Gear Box:a. Any mounting bolt(s) loose or missing.
b.

Any crack(s) in gear box or mounting brackets.

10) Nuts:

a. Nut(s) loose or missing on tie rods, pitman arm,
drag link, steering arm, or tie rod arm.

6) Pitman Arm:a. Any looseness of the pitman armon
the steering gear output shaft.
7) Power Steering. On vehicles equipped withpower steering, the fluid level, belt tension and belt
condition must be inspected for compliance before
starting the engine to check for proper operation of
the steering.
a. Auxiliary power assist cylinder loose.

b. Visible leaks in power steering unit or hoses.
c. Power steering belt is excessively cracked,

frayed, or has pieces missing or tension is notadequate. Serpentine belts are not to be rejected
merely for cracks in the ribs.

d. Fluid in power steering unit is below
manufacturer’s recommended level. Do not overfill.
8) Ball and Socket Joints:
a. Any movement under steering load of a stud nut.
b. Any motion, other than rotational, between any
linkage member and its attachment point of morethan ¼ inch.
9) Tie Rods and Drag Links:
a. Loose clamp(s) or clamp bolt(s) on tie rods ordrag links.

b. Any looseness in any threaded joint.

15.21 Stop Lamps

Every motor vehicle, trailer, semitrailer, and pole
trailer shall be equipped with two or more stop
lamps, except motorcycles and motor-driven
cycles, which require one stop lamp. Passenger
cars and trucks manufactured or assembled prior
to the model year 1960 shall be equipped with atleast one stop lamp.
A stop lamp on a CMV must emit a red lightand be visible from a distance of not less than 300
feet to the rear in normal sunlight. The stop lamp
shall be actuated upon application of the service
brake and which may, but need not, beincorporated with one or more other rear lamps.

Multipurpose passenger vehicle (e.g. SUV,
pickup truck, vans), truck, bus, whose overall
width is less than 80 inches, whose GVWR is
10,000 lbs. or less, manufactured on or after
September 1, 1993: 2 Stop Lamps and a Center
High-Mount Stop Lampe.

1. Inspection Procedure. Check operation andcondition visually.

2. Inspect for and reject if: (Refer to Annex #3 forlighting diagrams)

a. Required lamp or lamps are not present.

Commercial vehicles 80 inches or more in
width and whose GVWR is 10,001 lbs. or more:
2 Stop Lamps
f.

b. Lamp is not securely mounted to the vehicle.
c. Lamp does not emit a steady burning red lightwhich is actuated on application of the service(foot) brake.

Trailers, Semitrailers, Pole Trailers: 2 Stop
Lamps

g.

d. Lamp is not visible from a minimum distanceof 300 feet to the rear of the vehicle to which it
is attached. LED lights have less than 50% of
diodes illuminated. Lamp height is less than 15
inches or more than 72 inches.

e. Lamp lens is painted, missing; a portion of thelens is missing, discolored, does not fit properly,or repaired with repair tape or repair kit.
f. Wiring is shoddy or electrical connections

are poor.

g. Lamp projects a glaring or a dazzling light.
h. Lamp is not mounted on rear of vehicle.
i. Lens is cracked.
j. Any lamp assembly is cracked allowing

water to enter or the lamp assembly contains
standing water.
k. Lamps are not of equal intensity.

Number of Stop Lamps Required for a
Commercial Vehicle Inspection:
a. Passengers cars manufactured prior tomodel year 1960: 1 Stop Lamp

Motorcycles and motor-driven cycles: 1 Stop
Lamp

h.

Center High Mount Stop Lamp:
Each passenger car manufactured on or after September
1, 1985, and each multipurpose passenger vehicle (e.g.
SUV), truck, bus, whose overall width is less than 80
inches, whose GVWR is 10,000 lbs. or less,manufactured on or after September 1, 1993, shall beequipped with a center high-mounted stop lamp. A
center high-mounted stop lamp cannot be substituted forany other required stop lamps.

3.

1. Inspection Procedure. Check operation andcondition visually.

2.

Inspect for and reject if:
a. . Required lamp is not present. This light will

not be inspected if obstructed by camper shells,
tool boxes, luggage racks etc. However, if thecamper shell is equipped with a center high mountstop lamp, it must be operational at the time ofinspection.

b. Lamp is not securely mounted to the vehicle.

b. Passenger cars manufactured in model year

1960 to model year 1984: 2 Stop Lampsc. Lamp does not emit a steady burning red lightwhich is actuated on application of the service(foot) brake.

c. Passenger cars manufactured on or afterd. Lamp is not visible from a minimum distance

September 1, 1985 to present: 2 Stop Lamps
and a Center High-Mount Stop Lamp
d. Multipurpose passenger vehicle (e.g. SUV,

pickup truck, vans), truck, bus, whose overall
width is less than 80 inches, whose GVWR is
10,000 lbs. or less, manufactured before
September 1, 1993: 2 Stop Lamps

of 300 feet to the rear of the vehicle. The
center high-mounted stop lamp has less than
50% of its bulbs or LED diodes illuminated.

Deflated air suspension, i.e. system failure,leak, etc.

h.
e. Lamp lens is painted, missing, discolored, ordoes not fit properly. Any aftermarket tint has
been applied over the Center High-Mount Stop
Lamp.

f. Wiring is shoddy or electrical connections arepoor.

g. Lamp projects a glaring or a dazzling light.
h. Lamp is not mounted on rear of vehicle.
i. Lens is cracked or broken to the extent that a

portion of the lens is missing and/or separated,
permitting light from the bulb to emit through thecrack or break.

j. Center High-Mount Stop Lamp must be

located on the centerline of the vehicle if
manufacturer equipped.

k. Lamp lenses repaired with repair tape or repair

kit.

l. Lamp assembly is cracked allowing water toenter or the lamp assembly contains standing
water.

15.22 Suspension

1. Inspect for and reject if:
a. U-bolt, spring hanger, or other axle
positioning parts are cracked, broken, loose, or
missing.
Any leaves in a leaf spring assembly arebroken or missing.

b.

Any broken main leaf in a leaf springassembly (includes assembly with more than
one main spring).

c.

d.

Coil spring broken.

e.

Rubber spring missing.

f. One or more leaves displaced in a mannerthat could result in contact with a tire, rim, brake
drum, or frame.

Broken torsion bar spring in a torsion bar
suspension.

g.

Any part of a torque, radius, or tracking
component assembly or any part used for
attaching the same to the vehicle frame or axle
is cracked, loose, broken, or missing. Does not
apply to a loose bushing in torque or track rods.

i.

2.
Inspect for and reject if: (Refer to Annex #3
for lighting diagrams)
a. Required lamp or lamps are not present.
b. Lamp is not securely mounted to vehicle.
c. Lamp does not emit a steady burning red lightplainly visible 1,000 feet to the rear. LED lights
have less than 50% of diodes illuminated.
d. Lamp lens is painted, missing, discolored, does not
fit properly, or repaired with repair tape or repair kit.
e. Wiring is shoddy or electrical connections arepoor.

15.23 Tail Lamps

Every motor vehicle, trailer, semitrailer, pole trailer,and any other vehicle which is being drawn at the end of
a combination of vehicles shall be equipped with atleast two tail lamps mounted on the rear which, whenlighted, shall emit a red light plainly visible from a
distance of 1,000 feet to the rear. Tail lamps shall bemounted on the same level and as widely spaced
laterally as practicable.
Every tail lamp upon every CMV shall be located at aheight of not more than 72 inches nor less than 15
inches. Tail lamps are used only to designate therear of a vehicle.
At least two tail lamps are required on all motor
vehicles, trailers, semitrailers, and pole trailers, exceptthat at least one tail lamp is required on motorcycles,
motor-driven cycles, and mopeds and all 1959 modelyear and earlier passenger cars and trucks.
1.
Inspection Procedure. Check operation andcondition visually. Vehicles that are equipped fromthe manufacturer with approved lenses which are clear
and lighted by LED lights will pass state inspection.
Vehicles that are equipped with aftermarket lenses
which are clear and lighted by a red bulb will berejected. There are no red bulbs currently approved
for use on vehicles.

f. Lamp is not wired so as to be lighted when headlamps or auxiliary driving lamps are lighted.
g. Lamp is obstructed by any part of the bodyh. Lamp does not emit a red colori. Lamps are not mounted on the same level and as
widely spaced laterally as practicable. Lamp heightis less than 15 inches or more than 72 inches.
j. Lamps are not mounted on rear of vehicle.
k. Lens is cracked, missing, or a portion of the lensis missing.
l. Any lamp assembly is cracked allowing water toenter or lamp assembly contains standing water.
m. Lamps are not of equal intensity.

b. Tire is flat or has noticeable (e.g., can be
15.24 Tires
1. Inspect any tire on Steering Axle for and reject if:

heard or felt) leak.

c. Has body ply or belt material exposed
through the tread or sidewall.

a. Has less than 4/32-inch tread when measured at

d. Has any tread or sidewall

b. Has body ply or belt material exposed
through the tread or sidewall.

e. Has a cut where ply or belt material isc. Has any tread or sidewall separation.

f. So mounted or inflated that it comes incontact with any part of the vehicle. (Thisincludes a tire that contacts its mate).

any point on a major tread groove.

d. Has a cut where the ply or belt material is

exposed.

e. Labeled “Not for Highway Use” or displaying

other marking which would exclude use on thesteering axle.

f. Any bus equipped with regrooved, recapped

separation.

exposed.

Is marked “Not for Highway Use” orotherwise marked and having like meaning.

g.

h. Has less than 2/32-inch tread when measured

at any point on a major tread groove.

or retreaded tires on the steering axle.

g. A truck or truck-tractor with regrooved tires
with a load-carrying capacity equal to or greaterthan 4,920 pounds on the steering axle.
h. A tube-type radial tire without radial tube stem

markings. These markings include a red bandaround the tube stem, the word “radial”
embossed in metal stems, or the word “radial”
molded in rubber stems.

i. Mixing bias and radial tires on the steering

axle.

15.25 Turn Signal Lamps

j. The tire flap protrudes through valve slot in
rim and touches stem.

Every motor vehicle, trailer, semitrailer, and pole trailer
shall be equipped with electrical turn signal lamps,
except that passenger cars and trucks less than 80
inches in width and manufactured or assembled prior
to the model year 1960 need not be equipped withelectrical turn signal lamps.

k. Boot, blowout patch, or other ply repair.
l. Weight carried exceeds tire load limit. This

includes overloaded tire resulting from low airpressure.

m. Tire is flat or has noticeable (e.g., can beheard or felt) leak.

n. So mounted or inflated that it comes incontact with any part of the vehicle.
2. Inspect all other tires and reject if:
a. Weight carried exceeds tire load limit. This

includes overloaded tire resulting from low airpressure.

If the bed, body, cab, load, and any other equipment on
a vehicle or combination of vehicles exceeds 24
inches or more to the left of the center of the top of thesteering post in the same horizontal plane (that is, ashigh as the center of the top of the steering post) or
when the distance from the center of the top of thesteering post to the rear limit of the body or load
exceeds 14 feet, then turn signal lamps are required, eventhough a hand and arm signal can be seen and thevehicle was manufactured or assembled prior to modelyear 1960.

Required turn signal lamps must be visible to the front
and to the rear of the vehicle.
1. Electric turn signal lamp types:a. Single-faced units.
b. Double-faced units.
c. Arrow-faced units.
d. Kits designed to be used in conjunction with theparking light assembly.

2. Electric turn signal lamp flashers. All open-faced andarrow-type turn signal lamps must flash on and off inorder to clearly indicate an intention to turn.

Motorcycles, motor-driven cycles, and mopeds are notrequired to be equipped with turn signal lamps.
Semaphore or mechanical arm devices are notacceptable as turn signal lamps.
4. Inspection Procedure. Check operation andcondition visually.

5. Inspect for and reject if: (Refer to Annex #3

for lighting diagrams)

a. Lamps are required and not present.
b. Device is not securely mounted or properly

located on the vehicle. Lamp height is less than
15 inches or more than 83 inches.
c. Device is not of a type meeting

Department standards.

Turn signal lamps are required on those vehicles
manufactured with a right-hand (steering wheel) drive,
regardless of model year.

d. Lamp lens is painted, discolored, missing, or a

A single lamp (large double-faced unit) on each side of atruck-tractor, which is visible to the front and rear, will
suffice for turn signal lamps.

e. Wiring insulation is worn, rubbed bare,

3. Turn signal lamp mounting. The lamps on a CMV
showing to the front shall be mounted on the same level
and as widely spaced laterally as practicable and, when
signaling, shall emit amber light.

f. Switch is not convenient to driver or indicator

The lamps showing to the rear shall be mounted on thesame level and as widely spaced laterally as practicable
and, when signaling, shall emit a red or amber light.
Turn signal lamps on vehicles 80 inches or more in
overall width shall be visible from a distance of not lessthan 500 feet to the front and rear in normal sunlight.
Turn signal lamps may, but need not, be incorporated inother lamps on the vehicle.
Turn signal lamps shall indicate an intention to turn by
flashing lamps showing to the front and rear of a vehicle.
On a combination of vehicles, turn signal lamps shallindicate an intention to turn by flashing lamps to thatside of the vehicle or combination toward which the turn isto be made.

portion of the lens is missing. Lamp lenses
cannot be repaired with repair tape or repair kit.

or shows any evidence of burning, shortcircuiting, or poor electrical connections.

light does not operate. Selector switch must
lock in proper turn position when applied but
need not cancel automatically.

g. Signal shows any color other than amber tofront, or signal shows any color other than red oramber to the rear.
h. Signal does not flash or is not operating

properly.

i. Signal is not clearly visible to the front and to

the rear of the vehicle for the required distance.
LED lights have less than 50% of diodes
illuminated.

j. Lens is cracked.

e. Disc wheels with elongated bolts, holes, orcracks between hand holes or stud holes, orboth.

k. Any lamp assembly is cracked allowing water toenter or the lamp assembly contains standing water.

l. Lamps are not of equal intensity.
15.26 Vehicle Identification Number (VIN)

Vehicle Identification Number, Motor, or Serial Number:
Make an actual physical check of the motor block, frame,or body part where such number is located and record
same on the vehicle inspection report. The entire
vehicle identification number must be used. Do not
reject a vehicle because it has no vehicle identification
number or motor or serial number.

f. Cast wheels with cracks, evidence of wear

in the clamp area, or both.

g. Rims have defects or cracks to the extent

that they impair the safe mounting andproper retention of tires.

h. Any wheel cannot be securely fastened tothe hub of the vehicle.

i. Welds
1. Any cracks in welds attaching discwheel disc to rim.

Vehicles with altered or removed vehicle identification
numbers or motor or serial numbers should be reported toyour Department representative.

2. Any crack in welds attaching

15.27 Wheels and Rims

3.

1. Inspection Procedure. The inspection of all wheels andrims will be visual. Spare wheels and rims will not be
inspected. Wheel covers or hubcaps may be removed
from the vehicle if the certified inspector has probablecause or reason to believe that wheel or rim defects exist.

2. Inspect for and reject if:
a. Any loose, missing, broken, cracked, stripped,tube less demountable rim toadapter.

Any welded repair on aluminum
wheel(s) on a steering axle.

4. Any welded repair other than disc torim attachment on steel disc wheel(s)mounted on the steering axle.

j. On motorcycles and motor-driven cycles,
any spokes are bent, loose, broken, or missing.

damaged or otherwise ineffective wheel studs,
bolts, nuts, or lugs.

15.28 Window Tinting or Coatingb. Any part of the wheel is bent, cracked, or

meter to check window tinting or coating.

damaged so as to affect safe operation of thevehicle.

c. Wheel nuts, studs, and clamps which are loose,broken, missing, or mismatched. Adequate thread
engagement is imperative. Stud and nut threads on
wheel lugs must engage completely through theentire threaded portion of the nut.
d. Lock or side rings which are bent, broken,

cracked, improperly seated, sprung or mismatchedring(s) or otherwise damaged. Check for evidence ofrim slippage - this is an indication of wear or loose
nuts.

1. Inspection Procedure. Utilize calibrated tint
2. Inspect for and reject if: (All year models)a. Coloring or tinting of windshields if thelight transmittance through the colored ortinted glazing is less than 70% of thenormal light transmittance. The measurement
for light transmittance should not be taken in
the 2 inch border at the top of thewindshield, a 1 inch border at each side of
the windshield, or in the area below the
topmost portion of the steering wheel. Check
tint meter calibration before rejecting vehicle.

b. Windows, immediately to the right and left ofthe driver, have less than 70% light transmittance.
Check tint meter calibration before rejecting
vehicle.

c. Tinting is red, blue, or amber in color or is areflective type.

d. Vehicles with windows immediately to the rightor left of the driver that cannot be raised or
lowered for inspection of the window tint.

or electric with vacuum wipers is permissible.
1. Inspection Procedure. Inspect for satisfactory

operation. If vacuum operated, engine must be idlingand control full on. Inspect for proper contact of
blades with windshield. Raise arm away fromwindshield and release. Arm should return tooriginal position and wiper blade should contact thewindshield firmly. The rear window is notconsidered a windshield and any wiper present on
the rear window is not an item of inspection.
2. Inspect for and reject if:

15.29 Windshielda. Vehicle is not equipped with the number

Windshield damage should not be assessed in the 2inch border at the top of the windshield, a 1 inchborder at each side of the windshield, or in the area
below the topmost portion of the steering wheel.

of wipers with which it was originallyequipped.

1. Inspect for and reject if:

freely, or is improperly adjusted.

a. Any crack over ¼ inch wide.
b. Any damaged area of larger than ¾ inch

diameter.

b. Wiper is inoperative, does not operatec. Wiper blades have damaged, hardened, orbadly worn rubber elements.

c. Any damaged area of ¾ inch diameter if

closer than 3 inches to any other similarly
damaged area.

d. The portion of the rubber element that
contacts the windshield is torn more than one
inch on one end or is torn a total of one inch
on both ends.

d. Any crack less than ¼ inch widee. Any part of the rubber element is tornintersecting with any other crack.

loose from the metal backing or blade base.

f. Metal parts of wiper blades or arms aredamaged or come in contact with thewindshield.
g. Wiper is incapable of adequately cleaning

the windshield.

h. Wiper blades are not making proper

contact with windshield.
15.30 Windshield Wipers

Every motor vehicle with a windshield must be
equipped with a windshield wiper or wipers
adequate for cleaning rain, snow, or othermoisture from the windshield; in good working
order; and constructed so as to permit operationand control by the driver of the vehicle.
All motor vehicles which were originally equipped(manufactured) with one wiper, only one wiper isrequired; if originally equipped (manufactured)with two or more wipers, all wipers will be
required. Replacement of vacuum with electrici. Wiper controls are not operating properlyor are located beyond the driver’s reach.
15.31

Rear Impact Guard

A. General requirements for trailers andsemitrailers manufactured on or after January
26, 1998. Each trailer and semitrailer with agross vehicle weight rating of 4,536 kg(10,000 pounds) or more, and manufactured
on or after January 26, 1998, must be
equipped with a rear impact guard that meetsthe requirements of Federal Motor Vehicle
Safety Standard No. 223 (49 CFR 571.223)
in effect at the time the vehicle wasmanufactured. When the rear
impact guard is installed on the
trailer or semitrailer, the vehicle
must, at a minimum, meet therequirements of FMVSS No. 224(49 CFR 571.224) in effect at thetime the vehicle was manufactured.
The requirements of paragraph (A)of this section do not apply to pole
trailers (as defined in § 390.5 of thischapter); pulpwood trailers, lowchassis vehicles, special purpose
vehicles, wheels back vehicles, androad
construction
controlled
horizontal discharge trailers (asdefined in § 393.5); and trailers
towed in driveaway-towaway
operations (as defined in § 390.5).
B.
Certification
andlabeling requirements for rear
impact protection guards. Each rear
impact guard used to satisfy therequirements of paragraph (A) of
this section must be permanently
marked or labeled as required by
FMVSS No. 223 (49 CFR 571.223,
S5.3). The label shall be placed on
the forward or rearward facing
surface of the horizontal member ofthe guard, provided that the label
does not interfere with theretroreflective sheeting required by
S5.7.1.4.1(c) of FMVSS No. 108(49 CFR 571.108) and is readily
accessible for visual inspection.
The certification label must containthe following information:
1)
The
impactguard
manufacturer's name and address.
2) The statement “Manufactured
in ___” (inserting the month andyear that the guard was
manufactured); and,3)The
letters“DOT”,
constituting a certification by theguard manufacturer that the guard
conforms to all requirements of
FMVSS No. 223.
C.
Inspect for and reject if:
1) Missing guard.
2) Guard is not securely attached
to trailer, including broken or
missing fasteners, any welds orparent metal cracked, or otherdamage that compromises secureattachment of the guard.
3) Guard horizontal member does notextend to within 100 mm (4 inches) of each,or extends beyond either, side extremity ofthe vehicle.
4) Guard horizontal member is more than
560 mm (22 inches) above the ground.
5) Guard horizontal member is more than
305 mm (12 inches) forward of the rear
extremity of the vehicle.
6) Guard horizontal member does not havea cross sectional vertical height of at least
100 mm (4 inches) across its entire width.
D.
Requirements for motor vehicles
manufactured after December 31, 1952
(except trailers or semitrailers manufactured
on or after January 26, 1998). Each motor
vehicle manufactured after December 31,
1952, (except truck tractors, pole trailers,
pulpwood trailers, road construction
controlled horizontal discharge trailers, orvehicles in driveaway-towaway operations)in which the vertical distance between therear bottom edge of the body (or the chassis
assembly if the chassis is the rearmost partof the vehicle) and the ground is greaterthan 76.2 cm (30 inches) when the motor
vehicle is empty, shall be equipped with arear impact guard.
E. Inspect for and reject if:
1) Missing guard.
2) Guard is not securely attached to trailer
by bolts, welding, or other comparable
means.
3) Guard horizontal member is more than
762 mm (30 inches) above the ground.
4.) Guard horizontal member does notextend to within 457 mm (18 inches) of eachside extremity of the vehicle.
5) Guard horizontal member is more than
610 mm (24 inches) forward of the rear
extremity of the vehicle.
06.20.00 EXAMPLES OF DEFECTIVE
EQUIPMENTONCOMMERCIALVEHICLESSee Annex #5 for some examples of defective
equipment frequently encountered during
Commercial Motor Vehicle Inspections.