SJVUAPCD 4622 - 1 12/19/2013 

RULE 4622 GASOLINE TRANSFER INTO MOTOR VEHICLE FUEL TANKS (Adopted 

May 21, 1992; Amended November 18, 1992; Amended December 17, 1992; 

Amended February 17, 1994; Amended June 18, 1998; Amended September 19, 

2002; Amended December 20, 2007; Amended December 19, 2013) 

1.0 Purpose 

 The purpose of this rule is to limit emissions of gasoline vapors from the transfer of 

gasoline into motor vehicle fuel tanks. 

2.0 Applicability 

 This rule applies to any gasoline storage and dispensing operation or mobile fueler from 

which gasoline is transferred into motor vehicle fuel tanks, except as provided in Section 

4.0. 

3.0 Definitions 

 For the purpose of this rule, the following definitions shall apply: 

3.1 APCO: as defined in Rule 1020 (Definitions). 

3.2 ARB: California Air Resources Board. 

3.3 ARB Certified: a vapor recovery system, equipment, or any component 

thereof, for which the ARB has evaluated its performance and issued a valid 

Executive Order pursuant to California Health and Safety Code Section 41954. 

Each component of a system that is a separate ARB certified item cannot be 

replaced with a non-certified item or other items that are not certified for use 

with the particular system. Except for qualified repairs, an ARB certified 

component shall be as supplied by the qualified manufacturer. A rebuilt 

component shall not be deemed as ARB certified unless the person who rebuilds 

the component is authorized by ARB to rebuild the designated ARB certified 

component. 

3.4 ASTM: American Society for Testing and Materials. 

 3.5 Background: the ambient concentration of organic compounds determined at least 

two (2) meters upwind from any component to be inspected and which is 

uninfluenced by any specific emission permit unit. 

3.6 Business Day: any weekday, including Monday, Tuesday, Wednesday, Thursday, 

and Friday. 
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 3.7 Component: includes, but is not limited to, any valve, latch, fitting, pressure 

relief device, hose, nozzle, dispenser, or module in VOC service. 

 

 3.8 E85 Fuel: A blend of 85 percent ethanol and 15 percent gasoline, having a Reid 

vapor pressure of four (4) pounds per square inch absolute or greater, which is 

used as a motor vehicle fuel. 

3.9 Emergency: a fire, flood, earthquake, or other similar catastrophe. 

3.10 EPA: United States Environmental Protection Agency. 

 3.11 Existing Storage Container: a gasoline storage container which was in existence 

on or before May 21, 1992. 

 3.12 Gasoline: any petroleum distillate, or petroleum distillate/alcohol blend or alcohol 

having a Reid vapor pressure of four (4) pounds per square inch absolute or 

greater, which is used as a motor vehicle fuel, or any fuel which is commonly or 

commercially known or sold as gasoline. 

 3.13 Gasoline Storage and Dispensing Operation: an aggregate of one or more 

stationary storage containers, any of which is subject to the provisions of Rule 

4621 (Gasoline Transfer into Stationary Storage Containers, Delivery Vessels, and 

Bulk Plants) and this rule together with dispensers and control equipment required 

by the rules. 

 3.14 Gasoline Vapors: the organic compounds in the displaced vapors including any 

entrained liquid gasoline. 

3.15 Highway: a way or place of whatever nature, publicly maintained and open to 

the use of the public for purposes of vehicular travel. Highway includes street. 

 3.16 Hold-Open Latch: the integral component of a gasoline dispensing nozzle which 

permits the nozzle to remain open without a sustained effort on the part of the 

refueler. 

3.17 ICC: The International Code Council. 

3.18 In-Station Diagnostics (ISD): equipment that provides continuous real-time 

monitoring of critical emission-related vapor recovery system parameters and 

components, and alerts the station operator when a failure mode is detected so that 

corrective action is taken. 

3.19 IOM Manual: Installation, Operation, and Maintenance Manual. 
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3.20 Leak: the dripping of VOC-containing liquid at a rate of more than three (3) drops 

per minute, or the detection of any gaseous or vapor emissions with a 

concentration or total organic compound greater than 10,000 ppmv, as methane, 

above background when measured in accordance with the test method in Section 

6.5.4. Any liquid or gas coming from a component undergoing repair or 

replacement, or during sampling of process fluid from a component or equipment 

into a container is not considered sampling of a leak provided such activities are 

accomplished as expeditiously as possible and with minimal spillage of material 

and VOC emissions to the atmosphere. 

3.21 Liquid Condensate Trap (knock-out pot, thief port): a device designed to collect 

liquid that condenses in the vapor return line in a manner that allows it to be 

evacuated and ensures that the vapor return line will not be blocked by the 

accumulation of liquid. 

3.22 Major Defect: any defect that meets the criteria of California Code of 

Regulations, Title 17, Division III, Chapter 1, Subchapter 8, Article 1, Section 

94006 and is listed on ARB’s Vapor Recovery Equipment Defects (VRED) list or 

is specified within the ARB’s Executive Order certifying the vapor recovery 

system, as applicable. 

3.23 Major Modification: the addition, replacement, or removal of fifty percent or 

more of the buried vapor piping, or the replacement of dispensers. The 

replacement of a dispenser is not a major modification when the replacement is 

occasioned by end user damage to a dispenser. 

3.24 Mobile Fueler: any gasoline delivery vessel with an attached container that is used 

to transport and dispense gasoline from an onboard storage container into any 

motor vehicle fuel tank. 

3.25 Motor Vehicle: a vehicle that is self propelled.

3.26 Normal Business Hours: Monday through Friday, 8:00 am to 5:00 pm. 

3.27 Phase II Vapor Recovery System: a vapor recovery system that controls vapors 

during the transfer of gasoline from the gasoline dispensing operation to the 

vehicle and storage of gasoline at the gasoline dispensing operation. 

3.28 Portable Hydrocarbon Detection Instrument: a hand-held hydrocarbon analyzer 

that meets the criteria specified in US EPA Method 21, 40 CFR Part 60. The 

instrument shall be calibrated with methane. 

 3.29 Retail Gasoline Outlet: an establishment at which gasoline is sold or offered for 

sale to the general public for use in motor vehicles. 
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 3.30 Topping Off: to attempt to dispense gasoline to a motor vehicle fuel tank after a 

vapor recovery dispensing nozzle has shut off automatically. The filling of a 

vehicle tank which can be filled only after the seal between the fill pipe and the 

nozzle is broken, due to the nature and configuration of the fill pipe which causes 

premature shut-off of the dispensing nozzle, shall not be considered topping off. 

3.31 Vehicle: a device by which any person or property may be propelled, moved, 

or drawn upon a highway, excepting a device moved exclusively by human 

power or used exclusively upon stationary rails or tracks. 

3.32 Vehicle Fleet: a group of vehicles operated under the control of a single 

owner/operator. 

4.0 Exemptions 

4.1 Except for the provisions of Section 6.1.1 and 6.1.2, requirements of this rule 

shall not apply to the transfer of gasoline into motor vehicle fuel tanks from any 

existing storage container, as defined in Section 3.11, with an aggregate dispensing 

operation throughput of: 

4.1.1 less than or equal to 24,000 gallons per calendar year; and 

4.1.2 less than or equal to 10,000 gallons in any consecutive 30-day period. 

4.1.3 Any facility which exceeds the throughput limitations under Section 

4.1.1 or 4.1.2 shall be subject to all provisions of this rule on and after 

the date the throughput limitations were exceeded and shall be in 

compliance according to the schedule in Section 7.1. 

4.2 The requirements of this rule shall not apply to gasoline storage containers that are 

exempt pursuant to Section 4.0 of Rule 4621 (Gasoline Transfer into Stationary 

Storage Containers, Delivery Vessels, and Bulk Plants). 

4.3 Except for Section 6.1.3 and 7.2, the requirements of this rule shall not apply to 

vehicle fleets where 100 percent of the vehicles are equipped with onboard 

refueling vapor recovery (ORVR) systems. To qualify for this exemption, the 

operator must also own the gasoline dispensing operation that services the vehicle 

fleet. 

4.4 The requirements of this rule shall not apply to a mobile fueler that exclusively 

fuels aircraft. 

4.5 The requirements of Section 6.4.1 shall not apply to mobile fuelers registered 

under Permit-Exempt Equipment Registration program pursuant to Section 5.11. 
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4.6 The requirements of this rule shall not apply to E85 fuel dispensing operations. 

5.0 Requirements 

5.1 A person shall not transfer or permit the transfer of gasoline from any stationary 

storage container, or from any mobile fueler with a capacity greater than 120 

gallons, into a motor vehicle fuel tank with a capacity greater than 5 gallons, 

unless the gasoline dispensing unit used to transfer the gasoline is equipped with 

and has in operation an ARB certified Phase II vapor recovery system. 

5.1.1 All ARB certified Phase II vapor recovery systems shall be maintained 

according to ARB certifications and the manufacturer specifications 

applicable to the system. 

5.1.2 All ARB certified Phase II vapor recovery systems and gasoline dispensing 

equipment shall be maintained without leaks as determined in accordance 

with the test method in Section 6.5.4. 

5.2 Installation 

5.2.1 Any gasoline dispensing system subject to this rule shall comply with the 

provisions of this rule at the time of installation. 

5.2.2 Operators shall have all underground storage container installations and all 

underground piping configurations inspected by the APCO prior to 

backfilling. The operator shall notify the District by telephone or other 

District-approved method and obtain a confirmation number at least three 

business days prior to the backfilling. 

5.2.3 Installation and maintenance contractors shall comply with the following 

requirements: 

5.2.3.1 Be certified by the ICC for Vapor Recovery System Installation 

and Repair; and 

5.2.3.2 Renew the ICC certification for Vapor Recovery System 

Installation and Repair every 24 months. 

5.2.3.3 Make available onsite proof of ICC certification, and 

5.2.3.4 Have and make available on site proof of any and all 

certifications required by the applicable ARB Executive Order 

and installation and operation manual in order to install or 

maintain specific systems. 
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5.2.4 In lieu of complying with Sections 5.2.3.1 through 5.2.3.4, installation and 

maintenance contractors may work under the direct and personal 

supervision of an individual physically present at the work site who 

possesses and makes available on site current certifications from the ICC, 

indicating the individual has passed the ICC Vapor Recovery System 

Installation and Repair exam and all other certifications required by the 

applicable ARB Executive Order. 

5.2.5 Notwithstanding any provisions of this rule, any gasoline dispensing 

operation which has installed and obtained a permit to operate an ARB 

certified Phase II vapor recovery system shall continue to use such system 

and shall maintain the system and all of its components in good repair in 

order that such system can continue to comply with the certification 

recovery efficiency. 

5.2.6 Any ARB certified Phase II vapor recovery system that has been installed 

shall not be removed regardless of the amount of gasoline dispensed or 

how the gasoline is delivered to the operation. 

5.2.6.1 This requirement shall not include those operations that are 

exempt or become exempt per Section 4.3. 

5.2.6.2 This requirement shall not preclude the installation of a new ARB 

certified Phase II vapor recovery system. 

5.3 Inspections 

5.3.1 The owner or operator of an ARB certified Phase II vapor recovery system 

shall conduct periodic maintenance inspections to ensure that components 

of the vapor recovery system are in proper operating condition. 

5.3.2 The frequency of inspections shall be based on the operation’s largest 

monthly gasoline throughput from the previous calendar year as indicated 

in Table 1. 
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Table 1 – Schedule of Maintenance Inspection 

Gasoline Dispensed by the Facility During 

Largest Monthly Throughput of Previous Year 

Frequency of Inspections 

A. Retail Gasoline Outlets 

 1. Less than 25,000 gallons One day per week 

 2. 25,000 gallons or greater Five days per week 

B. Non-Retail Gasoline Outlets And Other Gasoline Dispensing Operations 

 1. Less than 2,500 gallons One day per month 

 2. 2,500 to less than 25,000 gallons One day per week 

 3. 25,000 gallons or greater Five days per week 

5.3.3 The frequency of vapor path inspections shall be based on the amount of 

gasoline dispensed by the operation in a calendar month as indicated in 

Table 1. 

5.3.4 The person conducting the inspections shall at a minimum, verify the 

following during inspections: 

5.3.4.1 That the fueling instructions required by Section 5.5 are clearly 

displayed with the appropriate toll-free complaint phone number 

and toxic warning signs. 

5.3.4.2 That the following nozzle components are in place and in good 

condition as specified in the applicable ARB Executive Orders: 

faceplate/facecone, bellows, latching device spring, vapor check 

valve, spout (proper diameter/vapor collection holes), insertion 

interlock mechanism, automatic shut-off mechanism, hold open 

latch. 

5.3.4.3 That the hoses are not torn or crimped. 

5.3.4.4 That the vapor path of coaxial hoses associated with bellows 

equipped nozzles does not contain more than 100 ml of liquid, or 

as required by the applicable ARB Executive Order. 

5.3.4.4.1 The amount of liquid in the vapor path shall be 

determined by lowering the gasoline dispensing nozzle 

into a container, opening the vapor check valve, and 

allowing the hose to drain until such time that no more 

liquid drains from the nozzle. 
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5.3.4.4.2 The amount of liquid drained into the container shall 

be measured using a graduated cylinder or graduated 

beaker. 

5.3.4.5 That the vapor processing unit is functioning properly, for 

operations that are required to have or possess such a unit. 

5.4 Maintenance and Repair 

 5.4.1 No person shall operate any ARB certified Phase II vapor recovery system 

or any portion thereof that has a major defect, until: 

5.4.1.1 The defect has been repaired, replaced, or adjusted as necessary 

to correct the defect; 

5.4.1.2 The District has been notified, and the District has reinspected the 

system or authorized the system for use. Such authorization shall 

not include the authority to operate the equipment prior to the 

correction of the defective components; and 

5.4.1.3 All major defects, after repair, are duly entered into the 

Operations and Maintenance (O&M) manual. 

5.4.2 Upon identification of any major defect, the owner or operator shall tag 

"Out-of-Order" all dispensing equipment for which vapor recovery has 

been impaired. 

5.4.2.1 Tagged equipment shall be rendered inoperable and the tag(s) 

shall not be removed until the defective equipment has been 

repaired, replaced, or adjusted, as necessary. 

5.4.2.2 In the case of defects identified by the District, tagged equipment 

shall be rendered inoperable, and the tag shall not be removed 

until the District has been notified of the repairs, and the District 

has either reinspected the system or authorized the tagged 

equipment for use. 

5.4.3 Breakaway valves, hoses, and nozzles shall be ARB certified. 

5.4.4 In the event of a separation due to a drive off, the owner or operator shall 

complete one of the following, unless otherwise specified in the applicable 

ARB Executive Order, and document the activities in accordance with 

Section 6.2, before placing the affected equipment back in service: 
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5.4.4.1 Conduct a visual inspection of the affected equipment, perform 

qualified repairs on any damaged components, and conduct 

applicable reverification tests pursuant to Sections 6.5.1.1, 

6.5.1.4 and 6.5.1.5, or 

5.4.4.2 Conduct a visual inspection of the affected equipment and replace 

the affected nozzles, coaxial hoses, breakaway couplings, and any 

other damaged components with new or certified rebuilt 

components that are ARB certified, before placing affected 

equipment back in service. 

 5.5 No owner or operator of a retail gasoline outlet shall operate or allow the operation 

of an ARB certified Phase II vapor recovery system unless operating instructions 

for the system: 

5.5.1 Are posted, noticeable, and readable from any place from which gasoline 

may be dispensed from the operation, 

5.5.2 Describe clearly how to fuel vehicles correctly using the station's 

dispensing nozzles, 

5.5.3 Include a warning that topping off may result in spillage or recirculation 

of gasoline and is prohibited, and 

5.5.4 Display prominently the District's or the ARBs toll-free telephone 

number, or both, and the information that such number or numbers can 

be used to register complaints regarding the operation of the vapor 

recovery system. 

5.6 No person shall top off a motor vehicle fuel tank. 

 5.7 Each retail gasoline outlet shall utilize hold-open latches on all gasoline dispensing 

nozzles. 

5.7.1 Any gasoline dispensing nozzle which is installed, repaired, or replaced 

shall be equipped with a hold-open latch. 

5.7.2 The hold-open latch shall be installed on the gasoline dispensing nozzle 

by the original manufacturer of the nozzle, or if retrofitted, shall be 

installed using components and procedures approved by the nozzle 

manufacturer. 

5.8 The requirements of Section 5.7 shall not apply to operations where the use of 

hold-open latches is prohibited by law or the local fire control authority. 
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 5.9 No owner or operator shall tamper with, or permit tampering with, the system in a 

manner that would impair the operation or effectiveness of the system. 

5.10 All liquid removal devices required by ARB Executive Order shall be maintained 

to achieve a minimum liquid removal rate of five milliliters per gallon. This 

standard shall apply at dispensing rates exceeding five gallons per minute, unless a 

higher removal rate is specified in the applicable Executive Order. 

5.11 Mobile Fueler Registration Requirements 

The owner of a mobile fueler shall register such mobile fueler pursuant to Rule 

2250 (Permit-Exempt Equipment Registration), except for a mobile fueler that is 

not required to comply with Section 5.1 of this rule. 

5.12 Liquid Condensate Traps 

 

 Liquid condensate traps shall be used, if necessary, to keep the vapor return piping 

clear of any liquid blockage from the remote dispenser to the aboveground storage 

tank or when it is not possible to achieve the necessary slope from the dispenser to 

the underground storage tank. 

 

5.12.1 Liquid condensate traps shall be used only when the minimum slope 

requirements of 1/8 inches per foot of run cannot be met due to the 

topography. 

5.12.2 When liquid condensate traps are installed on gasoline dispensing systems 

equipped with an ARB certified Phase II enhanced vapor recovery system, 

they shall meet the following requirements: 

5.12.2.1 Maintained vapor tight; 

5.12.2.2 Accessible for inspection upon request; 

5.12.2.3 Capable of automatic evacuation of liquid; and 

5.12.2.4 Equipped with an alarm system in case of failure of the 

 evacuation system 

5.13 In-Station Diagnostics (ISD) System 

 

5.13.1 The owner or operator shall not clear, or allow any other individual to 

clear, any ISD warning or failure alarms prior to taking appropriate 

action. The appropriate action shall be in accordance with the IOM 

manual for the Phase II vapor recovery system or an ARB Enforcement 

Advisory. 
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5.13.2 In the event of an ISD failure alarm and subsequent automatic shutdown 

of gasoline dispensing, the owner or operator shall not re-enable or allow 

the re-enabling of the affected fueling point(s) unless all troubleshooting, 

repairs and tests specified in the applicable ARB Executive Order and 

IOM for the Phase II vapor recovery system, have been successfully 

completed or are in the process of being completed and documented. 

5.13.3 The owner or operator shall keep records of all alarms detected by the 

ISD system. The records shall include the following: 

 

5.13.3.1 The alarm date; 

5.13.3.2 The nature of the alarm; 

5.13.3.3 Type of test and test date to verify the validity of ISD alarm; 

5.13.3.4 Maintenance or repair date to correct the cause of the alarm; 

5.13.3.5 Maintenance or repair performed to correct the cause of the 

alarm; and 

5.13.3.6 Affiliation, telephone number, name and Certified Technician 

Identification Number of individual conducting maintenance or 

test. 

6.0 Administrative Requirements 

6.1 Recordkeeping and Reporting for Exempt Operations: 

6.1.1 Gasoline dispensing operations that are exempt under Section 4.1 shall 

maintain gasoline throughput records which will allow the gasoline 

throughput for any 30-day period to be continuously determined. These 

records shall be maintained on the premises as long as exempt status is 

claimed. 

6.1.2 Any gasoline dispensing operation previously exempt under Section 4.1 

whose gasoline throughput exceeds the exemption levels in Sections 4.1.1 

and 4.1.2 shall notify the District within 30 days of the date of exceeding 

the exemption levels. 

6.1.3 An operator claiming exemption under Section 4.3 shall keep a record of 

the make, model, model year, and vehicle identification number of all 

vehicles refueled at the gasoline dispensing operation. These records shall 

be maintained on the premises for at least five calendar years. 
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6.2 Recordkeeping and Reporting for Non-exempt Operations 

6.2.1 Operators shall retain the test result verification that each ARB certified 

Phase II vapor recovery system meets or exceeds the requirements of the 

tests specified in Section 6.5. These verifications shall be maintained for at 

least five years. These test results shall be dated and shall contain the 

names, addresses, and telephone numbers of the companies responsible for 

system installation and testing. 

6.2.2 A person who performs repairs on any ARB certified Phase I or Phase II 

vapor recovery system shall provide to the owner or operator a repair log, 

which the owner or operator shall maintain on the premises for at least five 

years and which shall include all of the following: 

6.2.2.1 Date and time of each repair; 

6.2.2.2 The name and applicable certification numbers of the person(s) 

who performed the repair, and, if applicable, the name, address 

and phone number of the person’s employer; 

6.2.2.3 Description of service performed; 

6.2.2.4 Each component that was repaired, serviced, or removed; 

6.2.2.5 Each component that was installed as replacement, if applicable; 

6.2.2.6 Receipts or other documents for parts used in the repair and, if 

applicable, work orders which shall include the name and 

signature of the person responsible for performing the repairs. 

6.2.3 Each operator who is required to perform periodic maintenance inspections 

under Section 5.3 shall maintain monthly gasoline throughput records on 

the premises for a minimum of five years, make them available on site 

during normal business hours to the APCO, ARB, or EPA, and submit 

them to the APCO, ARB, or EPA upon request. 

6.3 Recordkeeping Requirements for the Operations & Maintenance Manual (O&M 

Manual) 

6.3.1 The owner or operator of a gasoline dispensing operation shall maintain an 

O&M Manual in accordance with Section 6.3. 
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6.3.2 The O&M manual shall be kept at the dispensing operation and made 

available to any person who operates, inspects, maintains, repairs, or tests 

the equipment at the operation as well as to District personnel upon 

request. 

6.3.3 The O&M manual shall, at a minimum, include the following current 

information: 

6.3.3.1 Copies of all vapor recovery performance tests, 

6.3.3.2 All applicable ARB Executive Orders, Approval Letters, and 

District Permits, 

6.3.3.3 Manufacturer’s specifications and instructions for installation, 

operation, repair, and maintenance required pursuant to 

applicable ARB Certification Procedures, and any additional 

instruction provided by the manufacturer, 

6.3.3.4 System and/or component testing requirements, including test 

schedules and passing criteria for each of the standard tests listed 

in Section 6.0. The owner/operator may include any non-ARB 

required diagnostic and other tests as part of the testing 

requirements, and 

6.3.3.5 Additional O&M instructions, if any, that are designed to ensure 

compliance with the applicable rules, regulations, ARB Executive 

Orders, and District permit conditions, including replacement 

schedules for failure or wear prone components. 

6.3.4 Owners or operators of gasoline dispensing operations shall document the 

periodic maintenance inspection program in the O&M manual. 

6.4 Testing Requirements 

6.4.1 Operators shall comply with the ARB certified Phase II vapor recovery 

system performance tests specified in Sections 6.4.1.1 through 6.4.1.4 and 

shall conduct all applicable performance tests at start up and thereafter (no 

more than 30 days before or after the required compliance testing date) as 

required by the applicable ARB Executive Order and installation and 

operation manuals. 

6.4.1.1 Conduct and pass a Static Leak Test of the ARB certified Phase II 

vapor recovery system at least once every twelve months. 
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6.4.1.2 Conduct and pass a Dynamic Back-Pressure Test of the ARB 

certified Phase II vapor recovery system at least once every five 

years except for those aboveground storage tanks that have 

integral dispensers (non-remote), unless otherwise required under 

the applicable ARB Executive Order. 

6.4.1.3 For ARB certified Phase II vapor recovery systems with bellowsless nozzles, conduct and pass, as applicable, an Air-to-Liquid 

Volume Ratio Test or a Vapor-to-Liquid Ratio Test at least once 

every six months. 

6.4.1.4 For ARB certified Phase II vapor recovery systems with a liquid 

removal device required by ARB Executive Orders, conduct and 

pass a Liquid Removal Test whenever the liquid in the vapor path 

exceeds 100 ml of liquid, or as required by the applicable ARB 

Executive Order. The amount of liquid in the vapor path shall be 

determined in accordance with the procedure specified in Section 

5.3.4.4. 

6.4.2 The person responsible for conducting the tests specified in Section 6.4 

shall use calibrated equipment meeting the calibration range and calibration 

intervals specified by the manufacturer, ARB Executive Order, or ARB 

test procedure. 

6.4.3 Persons responsible for conducting the tests specified in Section 6.5 shall 

be in full compliance with all provisions of Rule 1177 (Gasoline 

Dispensing Facility Tester Certification). 

6.4.4 Each gasoline dispensing operation shall notify the District at least seven 

days prior to any performance testing. 

 6.4.5 Each ARB certified Phase II vapor recovery system shall be tested within 

60 days of completion of installation or modification. 

 6.5 Test Methods 

6.5.1 Tests shall be conducted in accordance with the latest version of the 

following ARB and EPA approved test methods, or their equivalents as 

approved by the EPA, and the APCO. 

6.5.1.1 Static Leak Test for Underground Tanks, ARB TP-201.3 

6.5.1.2 Dynamic Back-Pressure Test, ARB TP-201.4 
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6.5.1.3 Air-to-Liquid Volume Ratio Test, ARB TP-201.5 

6.5.1.4 Liquid Removal Test, ARB TP-201.6C 

6.5.1.5 Static Leak Test for Aboveground Tanks, ARB TP-206.3 or TP201.3B as applicable. 

6.5.2 Those vapor recovery systems whose ARB Executive Orders specify 

different tests to be performed instead of, or in addition to, the 

referenced test methods, or which, by their design, preclude the use of 

the referenced test methods, shall be tested in accordance with the test 

procedures specified in the applicable ARB Executive Orders or their 

equivalents as approved by the APCO and EPA. 

6.5.3 The Reid Vapor Pressure of gasoline shall be determined in accordance 

with ASTM D5191-01. 

6.5.4 Detection of leaks shall be in accordance with EPA Test Method 21. 

7.0 Compliance Schedule 

7.1 Any person who becomes subject to the requirements of this rule through loss of 

exemption shall comply with the following increments of progress: 

7.1.1 Within 30 days of loss of exemption from this rule, a complete application 

for an Authority to Construct must be submitted. 

7.1.2 Construction shall be completed within six (6) months from the issuance 

date of Authority to Construct. Testing for compliance with this rule shall 

be completed within six (6) months from issuance date of Authority to 

Construct or within 60 days of system start-up, whichever is sooner. 

7.2 Prior to operating under the exemption in Section 4.3, operators shall modify their 

Permits to Operate conditions, to allow such operations, pursuant to District Rule 

2201 (New and Modified Stationary Sources Review Rule). 

7.3 Any person who becomes subject to the requirement of the installation and 

operation of an ISD system shall comply with the following increments of 

progress: 

 7.3.1 Within 30 days of loss of exemption from ISD requirements, a complete 

application for an Authority to Construct must be submitted. 
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 7.3.2 Construction shall be completed within six (6) months from the issuance 

date of Authority to Construct. Testing for compliance with this rule shall 

be completed within six (6) months from issuance date of Authority to 

Construct or within 60 days of system start-up, whichever is sooner.