On-the-Job Training Standards 

For

Signal System Maintenance Personnel

March 30, 2023 
Foreword

The OJT tasks identified below assumes a continuous and ongoing positive conversation between 

the designated instructor / qualified person and trainee. It means enough opportunity for 

conversational feedback before, during, and after any task is undertaken. The purpose of this 

conversation is to ensure learning transfer occurs. Depending on task complexity and learner 

skill level, most adults gain mastery of new skills through practice and repetition. OJT 

standards provide the basis for measuring mastery of new skills in a fair and objective 

manner. It is understood that many of the tasks below are presented in a manner that may 

suggest non-complying conditions must be present for the trainee to demonstrate 

proficiency. That is not the case and it is for this reason that a positive conversation between 

teacher and learner is encouraged throughout the OJT process. 

Please also note that there is no obligation under 49 CFR Part 243 for employers to train safetyrelated railroad employees on skills they will never apply in connection with their duties. For 

example, if an employee will not be required to perform duties in passenger service, no training 

on those tasks is required. 
On-the-Job Training Roles and Responsibilities – Example Template

1. The designated instructor serves as the overall coordinator of the specific OJT program 

and is primarily responsible for: 

• Acting as the principal point of contact for the process, and ensuring the process is 

properly implemented. 

• Ensuring that all trainees and qualified persons involved in the OJT process have 

received hard copies of the OJT program or electronic copies of the checklist. 

• Providing guidance to both the trainee and qualified person in the process once they 

have received the OJT program.

• Ensuring that trainees have access to all the supporting publications listed in this OJT 

program. 

• Ensuring the trainee has successfully completed all safety-related tasks to become a 

qualified member of an occupational category or subcategory. 

2. The qualified person (sometimes referred to as a peer trainer) may serve as the 

mentor/coach for trainees. The qualified person must be qualified and has a duty to 

communicate with the trainees to ensure OJT is properly administered throughout the 

process. The qualified person will also provide daily briefings at the beginning and end 

of each day regarding the specific tasks focused on during that day. The trainee may 

perform OJT under the direct onsite observation of any qualified person, provided the 

qualified person has been advised of the circumstances and is capable of intervening if an 

unsafe act or noncompliance with Federal railroad safety laws, regulations, or orders is 

observed. However, the trainee must demonstrate OJT proficiency to the 

satisfaction of the designated instructor to become a qualified member of an 

occupational category or subcategory. A designated instructor and qualified person 

can be the same person. 

3. The trainee (new hire) has the responsibility to pay close attention to the qualified person 

providing OJT, and to take advantage of the knowledge and experience he or she has to 

offer. Tracking progress of the OJT is essential and is the trainee’s responsibility. 

Trainees should be aware of, and abide by, the following: 

• The designated instructor and/or qualified person will provide practical information 

 and advice on the requirements and responsibilities of assigned duties. 

• Trainees are responsible for completing any narrative and self-study assignments 

outside the scope of this OJT program. Additional assignments are an integral part of 

the training experience and must be completed before being deemed qualified by the 

employer. 

• To gain the maximum benefit from the OJT experience, trainees should: 

o Remain alert and involved in the training activities. 
o Ask questions and learn from feedback. 

o Take notes and apply previous lessons. 

o Complete all required assignments. 

o Become familiar with and comply with FRA regulations, railroad safety rules, and 

other procedures mandated as a condition of employment by the employer. 

o Develop and maintain a learning attitude. 

• The OJT experience is designed to be much more than following a qualified person 

around and watching what he or she does. Trainees must take an active role in the 

OJT and thoroughly engage in the various job tasks outlined in this OJT program. 

 

• Expect the qualified person to say, “Here, you give it a try.” Remember, while 

progressing through the OJT program, trainees can learn skills, to develop 

knowledge, and to adopt work habits and routines that will last throughout a railroad 

career. 

• Tracking and documenting OJT progress is an essential process step. 

Guidelines for On-the-Job Training Program Coordination and Administration 

In most cases, the first week or so of employment will involve administrative details and an 

overall orientation. Although it is understood that a trainee’s duties may overlap with other 

organizational requirements, each day of OJT should focus on one of the major duties of the 

OJT program to the extent possible. Once the tasks have been selected, there should be both 

an initial briefing on the tasks to be completed at the beginning and end of each day. 

• The purpose of the debriefing is to go through the day’s activities, and to focus on 

each of the tasks associated with the task selected. 

• There is no required sequential order for completing the OJT associated with any 

task, and no attempt is made to prioritize any tasks. Although OJT should be focused 

on a task, it is anticipated that the task standards will be accomplished based on 

available training opportunities. 

Important Note: Although OJT is a critical aspect of 49 CFR Part 243, FRA will consider, 

on a case-by-case basis, alternate approaches to OJT in lieu of the traditional approach 

(see 49 CFR § 243.5- On-the-job training). For example, some employers or training 

organizations may have access to state of the art indoor/outdoor training facilities that permit 

students to practice tasks that require neuromuscular coordination to learn in a controlled 

environment with minimal or no risk of personal injury. Other approaches may include; 

classroom practical exercises, role play, lab simulation, virtual reality (VR), and other 

emerging technologies. While FRA does encourage alternate approaches to OJT to lessen 

the risk of personal injury exposure to students, enough detail must be included in the 

submission and satisfy the regulatory requirements of 49 CFR § 243.101(d) (1-3).
49 CFR 236 – RULES, STANDARDS, AND INSTRUCTIONS 

GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND 

REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND 

APPLIANCES

On-the-Job Training Standards for Signal Maintenance Personnel

March 30, 2023

All Systems

Subpart A

Automatic 

Block

Subpart B

Interlocking

Subpart C

Traffic 

Control

Subpart D

ACS, ATS, 

ATC

Subpart E

General 1 5 

18

2 9 

3 11

4 17

401

426

566

567

568

Signals 102 24

21 25

22

23

201 206

202

204

205

301 329

303 335

310

311

402

403

404

405

504 534

511

512

514

Switches 103 13

6 14

7 

12

203 306 330

327 334

328 342

329

410 528

Electric Switch 

Locks

105

10

207 314

POSM* 382 382

Track Circuits 51 55 

59

52 56 

60

53 57

104 58

202 309 562

Route Locking 302 408

Approach 

Locking

305 407

Time Locking 407

Indication 

Locking

307

Mechanical 

Locking

304 336 

340

308 337 

341

326 338

335 339
All Systems

Subpart A

Automatic 

Block

Subpart B

Interlocking

Subpart C

Traffic 

Control

Subpart D

ACS, ATS, 

ATC

Subpart E

Inspections and 

Tests

101

107

108

376 380 

384

377 381 

386

378 382 

387

379 383

476 586 590

587

588

589

Electromagnetic 

Devices (e.g. 

relays)

106

109

8

556

Records 110

Locomotive 

Elements

501 552 

560

505 553 

563

515 555 

564

551 557

Roadway 

Elements

526 532

527

529

531

Other 71

73

74

76

312 513 560

516

516

557

*Power Operated Switch Machine

NOTE: Standards for dragging equipment detectors, slide detectors, and other similar devices 

are found in Subpart F.

NOTE: Definitions pertaining to 49 CFR 236 are found in Subpart G.

NOTE: Standards for processor-based signal and train control systems are found in Subpart H.

NOTE: Standards for positive train control systems are found in Subpart I. 
49 CFR 236 is organized to include standards, (System design and installation standards), and 

rules and instructions for the inspection, testing, maintenance, and repair of signal and train 

control systems, devices, and appliances. Generally, on-the-job training standards only apply to 

the latter category, with a few exceptions. In those rare case where a design and installation 

standard exist without a corresponding inspection or test an OJT standard has been written.

49 CFR 236 – OJT Worksheet Other OJT

236.0 – Applicability, minimum requirements, and penalties X

Subpart A – Rules and Instructions: All Systems

General

236.1 – Plans, where kept X

226.2 - Grounds X

236.3 – Locking of signal apparatus housings X

236.4 – Interference with normal functioning of device X

236.5 – Design of control circuits on closed circuit principle X

236.6 – Hand-operated switch equipped with switch circuit controller X

236.7 – Circuit controller operated by switch-and-lock movement X

236.8 – Operating characteristic of electromagnetic, electronic, or electrical 

apparatus

X

236.9 – Selection of circuits through indicating or annunciating instruments X

236.10 – Electric locks, force drop type; where required X

236.11 - Adjustment, repair, or replacement of components X

236.12 – Spring switch signal protection; where required X

236.13 – Spring switch; selection of signal control circuits through circuit 

controller

X

236.14 – Spring switch signal protection; requirements X

236.15 – Timetable instructions X

236.16 – Electric lock, main track release circuit X

236.17 – Pipe for operating connections, requirements X

Roadway Signal and Cab Signals

236.18 – Software management control plan X

236.21 – Location of roadway signals X

236.22 – Semaphore signal arm; clearance to other objects X

236.23 – Aspects and indications X

236.24 – Spacing of roadway signals X

236.26 – Buffing device, maintenance X

Track Circuits

236.51 – Track circuit requirements X

236.52 – Relayed cut section X

236.53 – Track circuit feed at grade crossing X

49 CFR 236 – OJT Worksheet Other OJT

236.54 – Minimum length of track circuit X

236.55 – Dead section, maximum length X

236.56 – Shunting sensitivity X

236.57 – Shunt and foul wires X

236.58 – Turnout, fouling section X

236.59 – Insulated rail joints X

236.60 – Switch shunting circuit, use restricted X

Wires and Cables

236.71 – Signal wires on pole lines and aerial cable X

236.73 – Open-wire transmission line; clearance to other wire X

236.74 – Protection of insulated wire; splice in underground wire X

236.76 – Tagging of wires and interference of wires or tags with signal 

apparatus

X
Inspections and Tests, All Systems

236.101 – Purpose of inspection and tests; removal from service of relay or 

device failing to meet requirements

X

236.102 – Semaphore or searchlight signal mechanism X

236.103 – Switch circuit controller or point detector X

236.104 – Shunt fouling circuit X

236.105 – Electric lock X

236.106 - Relays X

236.107 – Ground tests X

236.108 – Insulation resistance tests, wires in trunking and cables X

236.109 – Time release, timing relays and timing devices X

236.110 – Results of test X

Subpart B – Automatic Block Signal Systems

Standards

236.201 – Track-circuit control of signals X

236.202 – Signal governing movements over main track switch X

236.203 – Hand operated crossover between main tracks; protection X

236.204 – Track signaled for movements in both direction; requirements X

236.205 – Signal control circuits; requirements X

236.206 – Battery or power supply with respect to relay; location X

236.207 – Electric lock on hand-operated switch; control X

Subpart C – Interlocking X

Standards

236.301 – Where signals shall be provided X

236.302 – Track circuits and route locking X

236.303 – Control circuits for signals; selection through circuit controller 

operated by switch points or by switch . . .

X

49 CFR 236 – OJT Worksheet Other OJT

236.304 – Mechanical locking or same protection effected by circuits X

235.305 – Approach or time locking X

236.306 – Facing point lock or switch-and-lock movement X

236.307 – Indication locking X

236.308 – Mechanical or electric locking or electrical circuits; requisites X

236.309 – Loss of shunt protection; where required X

236.310 – Signals governing approach to home signal. X

236.311 – Signal control circuits, selection through track relays or device 

functioning as track relays and through . . .

X

236.312 – Movable bridge, interlocking of signal appliance with bridge devices X

Rules and Instructions

236.326 – Mechanical locking removed or disarranged, requirement for 

permitting train movement through . . . 

X

236.327 – Switch, movable point frog or split-point derail X

236.328 – Plunger of facing-point lock X

236.329 – Bolt lock X

236.330 – Locking dog of switch-and-lock movement X

236.334 – Point detector X

236.335 – Dog, stops and trunnions of mechanical locking X

236.336 – Locking bed X

236.337 – Locking faces of mechanical locking; fit X

236.338 – Mechanical locking required in accordance with locking sheet and 

dog chart

X

236.339 – Mechanical locking, maintenance requirements X

236.340 – Electromechanical interlocking machine; locking between electrical 

and mechanical levers

X

236.341 – Latch shoes, rocker links, and quadrants X

236.342 – Switch circuit controller X
Inspections and Tests

236.376 – Mechanical locking X

236.377 – Approach locking X

236.378 – Time locking X

236.379 – Route locking X

236.380 – Indication locking X

236.381 – Traffic locking X

236.382 – Switch obstruction X

236.383 – Valve locks, valves, and valve magnets X

236.384 – Cross protection X

236.386 – Restoring feature on power switches X

236.387 – Movable bridge locking X

49 CFR 236 – OJT Worksheet Other OJT

Subpart D – Traffic Control Systems

Standards

236.401 – Automatic block signal system and interlocking standards applicable 

to traffic control systems

X

236.402 – Signals at control points X

236.403 – Signals at control point X

236.404 – Signals at adjacent control point X

236.405 – Track signaled for movements in both directions, change of direction 

of traffic

X

236.407 – Approach or time locking, where required X

236.408 – Route locking X

236.410 – Locking. Hand-operated switch; requirements X

Rules and Instructions

236.426 – Interlocking rules and instructions applicable to traffic control systems X

Inspections and Tests

236.476 – Interlocking inspections and tests applicable to traffic control systems X

Subpart E – Automatic Train Stop, Train Control and Cab Signal Systems X

Standards

236.501 – Forestalling device and speed control X

236.502 – Automatic brake application, initiation by restrictive block conditions 

stopping distance in advance

X

236.503 – Automatic brake application, initiation when predetermined rate of 

speed exceeded

X

236.504 – Operation interconnected with automatic block signal system X

236.505 – Proper operative relationship between parts along roadway and parts 

on locomotive

X

236.506 – Release of brakes after automatic application X

236.507 – Brake application; full service X

236.508 – Interference with application of brakes by means of brake valve X

236.509 – Two or more locomotive coupled X

236.511 – Cab signals controlled in accordance with block conditions stopping 

distance in advance

X

236.512 – Cab signal indication when locomotive enters block where restrictive 

conditions obtain

X

236.513 – Audible indictor X

236.514 – Interconnection of cab signal system with roadway signal system X

236.515 – Visibility of cab signals X

236.516 – Power supply X

Rules and Instructions; Roadway

236.526 – Roadway element not functioning properly X

236.527 – Roadway element insulation resistance X

236.528 – Restrictive condition resulting from open hand-operated switch; 

requirements

X
236.529 – Roadway element inductor; height and distance from rail X

236.531 – Trip arm; height and distance from rail X

49 CFR 236 – OJT Worksheet Other OJT

236.532 – Strap iron inductor; use restricted X

236.534 – Entrance to equipped territory; requirements X

Rules and Instructions; Locomotives

236.551 – Power supply voltage; requirements X

236.552 – Insulation resistance; requirements X

236.553 – Seal; where required X

236.554 – Rate of pressure reduction; equalizing reservoir or brake X

236.555 – Repaired or rewound receiver coil X

236.556 – Adjustment of relay X

236.557 – Receiver; location with respect to rail X

236.560 – Contact element, mechanical trip type, location with respect to rail X

236.562 – Minimum rail current required X

236.563 – Delay time X

236.564 – Acknowledging time X

236.565 – Provision made for preventing operation of pneumatic brake-applying 

apparatus by double-heading . . .

X

236.566 – Locomotive of each train operating in train stop, train control or cab 

signal territory; equipped

X

236.567 – Restrictions imposed when device fails and/or is cut out en route X

236.568 – Difference between speeds authorized by roadway signal and cab 

signal; action required

X

Inspection and Tests; Roadway

236.576 – Roadway element X

236.577 – Test, acknowledgement, and cut-in circuit X

Inspection and Tests; Locomotive

236.586 – Daily or after trip test X

236.587 – Departure test X

236.588 – Periodic test X

236.589 - Relays X

236.590 – Pneumatic apparatus X

Subpart F – Dragging equipment and slide detectors and other similar 

protective devices

Standards

236.601 – Signals controlled by devices; location X

Subpart G – Definitions (Not Applicable – Definitions only) X

Subpart H – Standards for processor-based signal and train control 

systems

X

236.901 – Purpose and scope X

236.903 – Definitions X

236.905 – Railroad Safety Program Plan (RSPP) X

236.907 – Product Safety Plan (PSP) X

236.909 – Minimum performance standards X

49 CFR 236 – OJT Worksheet Other OJT

236.911 – Exclusions X

236.913 – Filing and approval of PSPs X

236.915 – Implementation and operation X

236.917 – Retention of records X

236.919 – Operations and maintenance manuals X

236.921 – Training and qualification program. General X

236.923 – Task analysis and basic requirements X

236.925 – Training specific to control office personnel X

236.927 – Training specific to locomotive engineers and other operating 

personnel

X
236.929 Training specific to roadway workers X

Subpart I – Positive train control systems X

236.1001 – Purpose and scope X

236.1003 – Definitions X

236.1005 – Requirements for Positive Train Control systems X

236.1006 – Equipping locomotives operating in PTC territory X

236.1007 – Additional requirements for high-speed service

236.1009 – Procedural requirements X

236.1011 – PTC Implementation Plan content requirements X

236.1013 – PTC Development Plan and Notice of Product Intent content 

requirements and Type Approval

X

236.1015 – PTC Safety Plan content requirements and PTC System 

Certification

X

236.1017 – Independent third-party Verification and Validation X

236.1019 – Main line track exception X

236.1021 – Discontinuances, material modifications, and amendments X

236.1023 – Errors and malfunctions X

236.1027 – PTC system exclusions X

236.1029 – PTC system use and failures X

236.1031 – Previously approved PTC systems X

236.1033 – Communications and security requirements X

236.1035 – Field testing requirements X

236.1037 – Records retention X

236.1039 – Operations and Maintenance Manual X

236.1041 – Training and qualification program, general X

236.1043 – Task analysis and basic requirements X

236.1045 – Training specific to office control personnel X

236.1047 – Training specific to locomotive engineers and other operating 

personnel

X

236.1049 – Training specific to roadway workers X

FOREWORD

These On-the-Job Training (OJT) Standards have been written with an assumption that 

the employee performing each task has the requisite understanding of basic electricity, 

ability to operate a volt-ohm-milliamp meter (and other electric/electronic test 

equipment) and the ability to correctly interpret its readings. The employee must also 

be able to read and interrupt circuit plans and track and location plans, have an 

understanding of the basic operating principles and the fundamental concepts of 

operation of railroad signal systems. 

OJT is an important facet of individual development and traditionally occurs in the 

workplace (e.g., the employee learns the job while doing the job). OJT provides the 

opportunity for an employee to apply the concepts learned in the classroom by

developing skills through practice and repetition; and to demonstrate personal mastery 

of critical safety tasks. An employee may perform these tasks under the direct onsite 

observation of any qualified person, provided the qualified person is a member of the 

same occupational category. However, the qualified person must be advised that they 

are accepting responsibility for the action of the observed employee and must be 

capable of recognizing and intervening if an unsafe act or act of non-compliance with 
Federal railroad safety laws, regulations, or orders occurs. These tasks must only be 

performed after measures are taken to ensure for the safe operation of trains, on-track 

equipment, roadway workers, and the public.

Warning: 49 CFR §236.4 Interference with the normal function of device is 

always in affect.

49 CFR §236.4 Interference with the normal function of device.

Safety of train operation must be provided before interfering with the normal 

function of any device.

The following skills are critical to the safety of the public and railroad employees:
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-1 Purpose of 

inspections and tests; 

removal from service of relay 

failing to meet test 

requirements. Demonstrate 

the ability to safely remove a 

relay from service and restore 

the system to normal operation.

(236.101) 

Given a relay that has failed to function 

within the manufacturer’s design 

parameters, specification and/or

railroad’s condemning limits the 

employee must be able to demonstrate 

the ability to:

NOTE: This task is seldom required to be 

performed, but when it must be 

performed it must be accomplished with 

100 percent accuracy. Maintaining 

proficiency at this task may be 

problematic. Hence, retraining may be 

required before repeating this task.

Safely remove the relay from service and restore system operation be 

installing a new relay.

The employee must complete this task and the results properly recorded no 

less than three (3) times with 100 percent accuracy.

Referenced or associated rules: 49 CFR §§236.8 and 236.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-2 Signal mechanism

Demonstrate the ability to 

inspect and test semaphore or 

searchlight signal mechanism. 

(236.102)

Inspect a Semaphore/Searchlight 

Mechanism: Given a semaphore signal 

or searchlight mechanism the employee 

will demonstrate the ability to:

NOTE: This inspection is required every 

six months.

_________________________________

Test a Semaphore/Searchlight 

Mechanism: Given a semaphore signal 

or searchlight mechanism, the 

appropriate test equipment, and the 

manufacturer’s operating characteristics 

and condemning limits the employee will 

demonstrate the ability to: 

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Inspect a semaphore signal for adequate clearance from foreign 

obstructions and freedom of armature movement; dirty, broken, chipped, or 

cracked roundels; dirt or foreign material within the mechanism; that any 

buffer mechanism does not allow a more permissive aspect to be displayed 

that intended; and ensure that the signal is aligned properly for the track that 

it governs.

Inspect at least five (5) searchlight mechanisms for improperly installed or 

burnt ribbons and contacts; freedom of armature movement; dirty, broken, 

chipped, or cracked roundels or lenses; dirt or foreign material within the 

mechanism; ensure that the signal is aligned properly for the track that it 

governs and record the results with 100 percent accuracy. 

____________________________________________________________

Test a minimum of five (5) semaphore signal and/or searchlight mechanisms 

to ensure that the devise is functioning within the manufacturer’s 

recommended operating parameters and record the results with 100 percent 

accuracy. 

Referenced or associated rules: 49 CFR §§236.4, 236.8, 236.11, 236.21,

236.22, 236.26, and 236.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-3 Switch circuit 

controller or point detector

Demonstrate the ability to 

inspect and test switch circuit 

controller or point detector. 

(236.103)

Given a switch location equipped with a 

switch circuit controller or point detector 

and an appropriate switch obstruction 

test gage the employee with demonstrate 

the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This inspection and test is 

required every three (3) months. 

Determine if five (5) switches equipped with a switch circuit controller 

connected to the switch point, or with a facing-point lock and circuit 

controller indicated to the signal system that the switch is open when the 

switch point is opened one-fourth inch or more on a facing-point switch, or 

three-eighths inch or more on a trailing point switch and record the results 

with 100 percent accuracy. 

Employee must ensure that track or control circuits will be opened or 

shunted or both and if equipped with facing-point lock with circuit controller, 

switch cannot be locked. 

Employee must inspect the physical location to ensure that on each handoperated switch, switch circuit controllers, facing-point locks, and switchand-lock movements that all connections are securely fastened in place, and 

contacts maintained with an opening of not less than one-sixteenth inch 

when open. Furthermore, the employee must successfully conduct a 

general inspection to determine the serviceability of cam bearings, shunt 

wires, wiring, gaskets, etc. 

This inspection and test applies to all switch circuit controllers and point 

detectors in all systems as requires by 49 CFR §§236.6, 236.13. 236.51. 

236.57, 236.202, 236.203, 236.334 and 236.342.

Referenced or associated rules: 49 CFR §§236.6, 236.7, 236.11, 236.13, 

236.60, and 236.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-4 Shunt fouling circuit

Demonstrate the ability to 

inspect and test shunt fouling 

circuit. (236.104)

Given a switch location equipped with a 

shunt fouling circuit and a tape measure 

the employee will demonstrate the ability 

to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This inspection is required every 

three (3) months.

_______________________________

Given a switch location equipped with a 

shunt fouling circuit and a 0.06 ohm track 

shunt the employee with demonstrate the 

ability to:

NOTE: This inspection test is required 

every three (3) months.

Inspect three (3) Shunt fouling locations to ensure that shunt wires and 

fouling wires consist of at least two discrete conductors, and each shall be of 

sufficient conductivity and maintained in such condition that the track relay 

will be in de-energized position, or device that functions as a track relay will 

be in its most restrictive state, when the circuit is shunted and record the 

results with 100 percent accuracy. 

Inspect the location to ensure that no track circuit dead-sections exist that 

exceed 35 feet, (where the wheel base of a locomotive operating over the 

dead section is less than 35 feet the length of the dead section cannot 

exceed the length of the outer wheelbase of the locomotive).

This inspection should determine the condition of insulated rail joints, bond 

wires and fouling wires are applied in compliance with 49 CFR §§236.51, 

236.56, 236.57, and 236.58 at the proper locations, are intact and in good 

condition. 

____________________________________________________________

Test the shunt fouling circuit to ensure that the track relay will be in deenergized position or device that functions as a track relay will be in its most 

restrictive state, when the circuit is shunted by a 0.06 ohm shunt at no less 

than (3) switch locations and record the results with 100 percent accuracy. 

Referenced or associated rules: 49 CFR §§236.11, 236.55, 236.57, 236.58, 

236.59, and 236.110. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-5 Electric lock

Demonstrate the ability to 

inspect and test electric lock 

mechanism. (236.105)

Given the appropriate relay test device 

and the appropriate manufacturer’s 

design specification and condemning 

limits, the employee must be able to 

demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

Note: This test is required every 2 years 

only for non-force drop type electric 

switch lock mechanisms.

Test the electromagnetic coils of a five (5) electric switch lock mechanism to 

ensure that they are operating within the manufacturer’s design parameters 

(if applicable). This test includes pick-up, release, and working values and

record the results with 100 percent accuracy. They may be recorded in 

either voltage or current values.

Note: This requirement only applies to non-force drop type electric switch 

lock mechanisms.

Note: Completion of Task 1-6 as required by 236.106 satisfies the 

requirements of this task.

Referenced or associated rules: 49 CFR §§236.8 and 236.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-6 Relay

Demonstrate the ability to 

inspect and test relays. 

(236.106)

Given the appropriate relay test device 

and the appropriate manufacturer’s 

design specification and condemning 

limits, the employee must be able to 

demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

Note: This test is required:

Every 4 years for dc relays,

Every 2 years for ac relays, and

Every year for ac centrifugal relays.

Maintaining proficiency at this task may 

be problematic. Hence, retraining may 

be required before repeating this task.

Test at least five (5) dc relays to ensure that they are operating within the 

manufacturer’s design parameters (if applicable).

Test at least five (5) ac vane-type relays to ensure that they are operating 

within the manufacturer’s design parameters (if applicable).

Test at least five (5) ac centrifugal relays to ensure that they are operating 

within the manufacturer’s design parameters (if applicable).

This test includes pick-up, release, and working values. They may be 

recorded in either voltage or current values.

If a relay fails to function in accordance with the manufacturer’s design 

parameters, remove the device from service per 236.101. 

Employee should observe the relay for improperly installed or burnt ribbons 

and contacts, broken glass, and for moisture or foreign materials inside the 

relay.

The employee must complete this task on at least five (5) relays of each 

type and record the results with 100-percent accuracy.

Referenced or associated rules: 49 CFR §§236.8, 236.101 and 236.110. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-7 Ground tests

Demonstrate the ability to 

conduct the ground test to 

detect circuit ground(s). 

(236.107)

Given a Volt-Ohm-Milliamp VOM meter, 

and the applicable circuit plan, the 

employee must be able to demonstrate 

the ability to: 

WARNING: A current reading must not 

be taken when a train is approaching or 

passing the location.

WARNING: A VOM meter or other test 

equipment must not be left unattended 

when connected to the energy bus and 

ground.

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

Determine which circuits affect the proper function of the signal system.

Detect any circuit ground or combination of grounds that permit a current 

flow of 75 percent or more of the release value of any relay or electromagnet 

device in the circuit.

Troubleshoot, locate, and eliminate the ground or grounds. 

Alternatively, if the ground(s) cannot be eliminated or reduced to less than 

75 percent of the release value of any relay or electromagnet device in the 

circuit, take appropriate action(s) to warn highway traffic and railroad 

employees.

This test is to be made at each energy bus that feeds signal system 

components and circuits. The test shall be made by measuring the voltage 

potential between each energy bus and ground. If a voltage potential is 

detected between an energy bus and ground, a current reading will be taken 

to determine compliance with 49 CFR §236.2.

This task must be complete at least five (5) times and record the results with 

100 percent accuracy.

Referenced or associated rules: 49 CFR §§236.2, 236.8, and 236.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-8 Insulation 

resistance tests, wires in 

trunking and cable

Demonstrate the ability to 

conduct test to determine 

Insulation resistance of wires in 

trunking and cables. (236.108)

Given a megohmmeter (Megger) or 

other high voltage resistance checking 

device the employee must be able to 

demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: Test must be made when wires, 

cable, and insulation are dry.

NOTE: Track wires, line wires, and case 

wiring are excluded from the 

requirements of this test.

NOTE: This test is required every ten 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task. 

Determine if wires, cables, and insulation are dry.

Determine the insulation resistance value of at least ten (10) conductors, 

between each other and between each conductor and ground.

Take action to repair or replace any wire or cable whose resistance between 

any wires or between any wires and ground is less than 500,000 ohms.

Immediately remove from service any wire or cable with an insulation 

resistance between wires or between any wire and ground is less than 

200,000 ohms.

If the trunking or cable fails to function as required above, make the 

necessary repair, or replacement, or take action as required by §236.108. 

This task must be successfully completed on at least two (2) trunking or two 

(2) multi-conductor cables and the results properly recorded with 100 

percent accuracy. 

Referenced or associated rules: 49 CFR §235.110.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 1-9 Time releases, 

timing relays and timing 

devices Demonstrate the 

ability to test time release, 

timing relays and timing 

devices. (236.109)

Given a watch or other accurate timing 

device and the location circuit plans the 

employee must be able to demonstrate 

the ability to:

This standard must be successfully 

completed on at least three time release, 

timing relays and timing devices for each 

type of application that requires a time 

delay. If three time release, timing relays 

and timing devices are not available the 

task must be completed three times on 

the same time release, timing relays and 

timing devices on three different 

inspections. 

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This rule requires that the 

predetermined time interval that the 

device must operate be indicated on the 

circuit plan or marked on the device.

Determine that timing relays and timing devices are maintained such that 

the timed interval are not less than 90 percent of the value as indicated on 

the circuit plans.

If the timing relay or timing device fails to function as intended, make the 

necessary adjustment, repair, or replacement, or take action other actions to 

ensure the safety of motorists and pedestrians.

This test is required to determine the length of time that a time release, 

timing relay, or timing device will run before the circuit locking is released.

The test shall be conducted by starting the time release, timing relay, or 

timing device and measuring the length of time from when the device started 

operating until the circuit locking is released.

Release time must not be less than 90 percent of the value indicated on the 

circuit plans or on the device.

The test must be completed and the results properly recorded for five (5) 

timing devices with 100 percent accuracy.

Referenced or associated rules: 49 CFR §§236.8, and 236.110. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-1 Mechanical locking

Demonstrate the ability to test 

mechanical locking. (236.376)

Given a mechanical interlocking, the 

corresponding Dog Sheet and track and 

location plan the employee must be able 

to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Ensure that once a route is established through the interlocking plant that no 

switches in the route can be moved and that no opposing or conflicting 

signals can display a signal indication more favorable than “Stop”. This task 

needs to be completed with 100 percent accuracy for at least three (3)

separate routes.

Referenced or associated rules: 49 CFR §§ 236.110, 236.304, 236.208, 

236.326, 236.335, 236.336, 236.337, 236.338, 236.339, 236.340, and 

236.341.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-2 Approach locking

Demonstrate the ability to test 

approach locking at a manual 

interlocking, traffic control 

point, automatic interlocking, 

and/or hand operated 

electrically locked switch. 

(236.377)

Given a manual or automatic interlocking 

plant, traffic control point, and/or hand 

operated electrically locked switch, the 

corresponding circuit plans and track and 

location plans the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. 

Maintaining proficiency at this task may 

be problematic. Hence, retraining may 

be required before repeating this task.

Ensure that once a route has been established through the interlocking 

plant, traffic control point, or hand operated hand operated electrically 

locked switch with the signal governing movement over that route displaying 

a proceed aspect that if the signal is set to “Stop” the route will remain 

locked if a train is on the approach to that route. This task needs to be 

completed and the results properly recorded with 100 percent accuracy for 

at least five (5) separate routes for each applicable signal arrangement. (i.e., 

manual interlocking, traffic control point, automatic interlocking, and/or hand 

operated electrically locked switch).

This test applies to both interlocking and traffic control systems. Applies to 

approach locking of both power operated devices and electrically locked 

hand-operated switches in both interlockings and traffic control systems.

Referenced or associated rules: 49 CFR §§236.110, 236.305 236.308 and 

236.760. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-3 Time locking

Demonstrate the ability to test 

time locking. (236.378)

Given an interlocking plant, the 

corresponding circuit plans and track and 

location plans the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Ensure that once a route has been established through the interlocking plant 

with the signal governing movement over that route displaying a proceed 

aspect that if the signal is set to “Stop” the route will remain locked for a 

predetermined amount of time as indicated on the circuit plans. This task 

needs to be completed with 100 percent accuracy and the results properly 

recorded for at least five (5) separate routes.

Referenced or associated rules: 49 CFR §§236.109, 236.110, 236.305, 

236.308 and 236.768. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-4 Route locking

Demonstrate the ability to test 

route locking. (236.379)

Given an interlocking plant, the 

corresponding circuit plans and track and 

location plans the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Ensure that once a route has been established through the interlocking plant 

with the signal governing movement over that route displaying a proceed 

aspect that once a train enters that route the route will remain locked until 

the train has traversed the route. This task needs to be completed and the 

results properly recorded with 100 percent accuracy for at least five (5)

separate routes.

Referenced or associated rules: 49 CFR §§236.110, 236.302, 236.308, 

236.309 and 236.767. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-5 Indication locking

Demonstrate the ability to test 

indication locking, (236.380)

Given an interlocking plant, the 

corresponding circuit plans and track and 

location plans the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Ensure that if any signal, switch, or other operative device fails to make a 

movement corresponding to the units controlling lever that any manipulation 

of levers that would result in an unsafe condition for train movements is 

prevented.

Ensure that the operation of any signal, switch, or other operative device will 

not operate in case another unit which should operate first fails to make the 

required movement.

This task needs to be completed and the results properly recorded with 100 

percent accuracy for at least five (5) separate routes.

Referenced or associated rules: 49 CFR §§236.110, 236.307, 236.308 and 

236.762.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-6 Traffic locking

Demonstrate the ability to test 

traffic locking. (236.281)

Given an interlocking plant, the 

corresponding circuit plans and track and 

location plans the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every two 

years. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Ensure that the direction of traffic on a section of track cannot be changed 

while that section is occupied or while a signal displays an aspect for a 

movement to proceed into that section. This task needs to be completed 

and the results properly recorded with 100 percent accuracy for at least five 

(5) separate routes.

Referenced or associated rules: 49 CFR §§236.110, 236.308 and 236.769
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-7 Switch obstruction 

test Demonstrate the ability to 

conduct a switch obstruction 

test. (236.382)

Given a power operated switch machine 

location, a hand crank, and a switch 

obstruction gauge the employee must be 

able to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested. 

NOTE: This rule applies to pipeconnected, mechanically operated 

switches; electric switches; electrohydraulic

switches; electro-pneumatic switches; 

and hand-operated switch machines with 

lock rods, where such

hand-operated switch machines are 

located within interlockings or traffic 

control systems.

NOTE: This test is required every month. 

Ensure that the of lock rod of each power operated switch machine and the 

lock rod of each hand-operated switch equipped with switch-and-lockmovement is maintained so that it cannot be locked when the point is open 

three-eighths inch or more.

This task must be successfully completed on at least five (5) separate 

switches and the results properly recorded with 100 percent accuracy. If 

five power operated switch machines are not available, the standard can be 

modified to allow five repetitions on those machines that are available on at 

least three consecutive days.

Referenced or associated rules: 49 CFR §§236.7, 236.107, 236.110 and 

236.327. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-8 Valve locks and 

valve magnets Demonstrate 

the ability to test valve locks, 

valves, and valve magnets. 

(236.383)

Given an interlocking plant equipped with 

a electro-pneumatic switch machine 

within an interlocking and the appropriate 

hand tools the employee must 

demonstrate the ability to test the “CP” 

and/or “D” values (or other pneumatic 

devices) for proper operation.

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every year. 

Maintaining proficiency at this task may 

be problematic. Hence, retraining may 

be required before repeating this task.

The purpose of the test is to ensure the proper functioning of critical 

pneumatic devices in an electro-pneumatic interlocking plant or traffic 

control point. This test must be completed with 100 percent accuracy and 

the results properly recorded no less than five (5) times.

Referenced or associated rules: 49 CFR §§236.11, 236.110 and 236.837. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-9 Cross protection

Demonstrate the ability to 

conduct a cross protection test. 

(236.384)

Given an interlocking plant equipped with 

cross protection, a variable resistor, a 

VOM, or other electronic test device, and 

appropriate hand tools the employee 

must be able to demonstrate the ability 

to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This rule applies only to those 

interlockings provided with cross 

protection devices. This test insures that 

switches, signals, etc., do not respond 

when current is improperly applied to 

circuits. 

NOTE: This test is required every six 

months. Maintaining proficiency at this 

task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Conduct the necessary test to ensure that the cross protection at an 

interlocking is functioning properly to prevent the improper operation of a 

signal, switch, movable-point frog, or derail as the result of a cross in 

electrical circuits. This test must be accomplished and the results properly 

recorded with 100 percent accuracy on at least five (5) separate circuits 

provided with cross protection.

Referenced or associated rules: §§49 CFR §§ 236.110 and 236.787.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-10 Restoring feature 

on power switches

Demonstrate the ability to test 

the restoring feature on power 

switches. (236.386)

Given a power operated switch machine 

location and a hand crank employee 

must be able to demonstrate the ability 

to:

Note: This rule applies only to electropneumatic switches.

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every three 

months. 

Ensure that before the driving bar creeps sufficiently to unlock the switch the 

power is applied to restore the switch movement to full normal or to full 

reverse position in correspondence with the control lever. This test must be 

accomplished at least five (5) times and the results properly recorded with 

100 percent accuracy.

 

Referenced or associated rules: 49 CFR §§ 236.110 and 236.746.
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 2-11 Moveable bridge 

locking Demonstrate the ability 

to test movable bridge locking. 

(236.387)

Given a moveable bridge that is 

interlocked with the signal system, 

applicable gauges, circuit plans, and a 

power operated switch machine location 

and a hand crank employee must be able 

to demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: This test is required every year. 

Maintaining proficiency at this task may 

be problematic. Hence, retraining may 

be required before repeating this task.

Determine that a movable bridge is in the proper position and alignment and 

that all associated rail locks, bridge locks, bolt locks, circuit controllers, and 

electric locks used in providing interlocking protection at a movable bridge

are functioning as intended. This task must be completed and the results 

properly recorded no less than five (5) time with 100 percent accuracy.

Referenced or associated rules: §49 CFR §§ 236.110, 236.312 and 

236.766. 
Apply 49 CFR Part 236 

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-1 Roadway element

Demonstrate the ability to 

check for positioning and 

alinement of roadway element. 

(236.576)

Given an automatic train stop, train 

control, or cab signal system equipped 

with roadway elements, such as 

electrical circuits, indicators, or trip arms 

the employee must be able to 

demonstrate the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: Applies to automatic train stop 

only.

NOTE: Alinement is checked every 

month.

NOTE: Testing is required every six 

months.

Gauge the height and alinement of the roadway elements, test the device for 

functionality within this part and the manufacturer’s or railroad’s specification

and properly record the results at least five (5) times with 100 percent 

accuracy.

Referenced or associated rules: 49 CFR §§236.110, 236.505, 236.526, 

236.527, 236,529, 236,531, 236.532, 236.560 and 236.744.
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-2 Test, 

acknowledgment and cut-in 

circuits

Demonstrate the ability to test

the function of test equipment, 

acknowledgement, and cut-in 

circuits. (236.577)

Given an automatic cab signals, automatic 

train stop, or automatic train control 

system with test acknowledgement 

circuits, and/or cut-in circuits and the 

appropriate test equipment or a 

locomotive equipped with on-board test 

equipment, the employee will demonstrate 

the ability to:

WARNING: Tests should not be 

conducted while rail traffic is approaching 

or within the section to be tested.

NOTE: The requirements of this subpart 

are different for different systems. The 

FRA Signal and Train Control Compliance 

Manual should be consulted for specific 

requirements.

NOTE: This subpart requires that cut-in

circuits, portable testers, and on-board 

test equipment be tested every year.

NOTE: This test is required every year. 

Maintaining proficiency at this task may be 

problematic. Hence, retraining may be 

required before repeating this task.

Test the function of test equipment, acknowledgement circuits and cut-in 

circuits to ensure proper operation of the automatic cab signals, automatic 

train stop, or automatic train control system. This test must be 

accomplished five (5) times on each type of unit and the results properly 

recorded with 100 percent accuracy for each type of system.

Referenced or associated rules: 49 CFR §§236.110, 236.505, 236.526, 

236.527, and 236.744. 
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-3 Daily or after trip 

test Demonstrate the ability to 

conduct daily or after trip tests. 

(236.586)

Given a locomotive equipped with 

automatic train stop, automatic cab 

signals, or automatic train control the 

employee will demonstrate the ability to: 

NOTE: The requirements of this subpart 

are different for different systems. The 

FRA Signal and Train Control Compliance 

Manual and the manufacture’s 

specifications should be consulted for 

specific requirements.

NOTE: this test is required each calendar 

day that the locomotive is used in 

automatic train stop, automatic cab 

signals, or automatic train control territory.

Conduct and properly record the daily or after trip test with 100 percent 

accuracy on at least five (5) locomotives. The purpose is to ensure that 

each locomotive’s on-board equipment is functioning properly prior to 

being dispatched into automatic train stop, automatic cab signal, or 

automatic train control territory.

Referenced or associated rules: 49 CFR §§236.110, 236.505, 236.514, 

236.564. 
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-4 Departure test

Demonstrate the ability to

conduct a departure test. 

(236.587)

Given a locomotive equipped with 

automatic train stop, automatic cab 

signals, or automatic train control and 

either an over track element, in track test 

circuit, portable test unit, or on-board test 

device the employee will demonstrate the 

ability to:

NOTE: The requirements of this subpart 

are different for different systems. The 

FRA Signal and Train Control Compliance 

Manual and the manufacture’s 

specifications should be consulted for 

specific requirements.

NOTE: This test is required prior to a 

locomotive entering automatic train stop, 

automatic cab signals, or automatic train 

control territory.

Conduct a departure test and record the results with 100 percent accuracy 

on at least five (5) locomotives. The purpose is to ensure that each 

locomotive’s on-board equipment is functioning properly prior to being 

dispatched into automatic train stop, automatic cab signal, or automatic 

train control territory.

Referenced or associated rules: 49 CFR §236.110,
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-5 Periodic test 

Demonstrate the ability to 

conduct a periodic test. 

(236.588)

Given a locomotive equipped with 

automatic train stop, automatic cab 

signals, or automatic train control and a 

mechanical shop equipped to conduct 

such tests the employee will demonstrate 

the ability to:

NOTE: The requirements of this subpart 

are different for different systems. The 

FRA Signal and Train Control Compliance 

Manual and the manufacture’s 

specifications should be consulted for 

specific requirements.

NOTE: This test is required on 

locomotives equipped with automatic train 

stop, automatic cab signals, or automatic 

train control at least once every 92 days.

Conduct a periodic test and record the results with 100 percent accuracy 

on at least five (5) locomotives.

Referenced or associated rules: 49 CFR §§236.110, 236.513, 236.515, 

236,516, 236.551, 236.552, 236.554, 236.555. 236.556, 236.557, 236.563, 

and 236.564.
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-6 Relays Demonstrate 

the ability to test a relay and 

determine its serviceability and 

disposition. (236.589) 

Given a mechanical electrical, or signal 

shop equipped to inspect, clean, and test 

relays and the manufacturer’s 

specifications the employee will 

demonstrate the ability to:

NOTE: This test is required every six 

years for on-board relays and every two 

years for master or primary relays of the 

torque type. Maintaining proficiency at 

this task may be problematic. Hence, 

retraining may be required before 

repeating this task.

Determine the serviceability of at least five (5) relays and properly record 

the results of each type that are part of an automatic train stop, automatic 

cab signal, or automatic train control system. 

Referenced or associated rules: 49 CFR §§236.8, 236.11, and 236.110.
Apply 49 CFR Part 236

Performance

Tasks

Conditions

Tools, Equipment, Documents,

Practice

Standards

Time, Completeness, or Accuracy

Task 3-7 Pneumatic 

apparatus 

Demonstrate the ability to test 

and determine the 

serviceability of pneumatic 

apparatus. (236.590) 

Given a mechanical shop equipped to 

inspect, clean, and test pneumatic devices 

as per 49 CFR 229.29 and the 

manufacturer’s specifications the 

employee will demonstrate the ability to:

NOTE: This test is required at various 

intervals as per 49 CFR 229.29.

Maintaining proficiency at this task may be 

problematic. Hence, retraining may be 

required before repeating this task.

Inspect, clean, and test and record the results on at least five (5) 

pneumatic devices of each type that are components of an automatic train 

stop, automatic cab signal, or automatic train control system with 100 

percent accuracy. 

Referenced or associated rules: 49 CFR §§229.29(a), 229.33 and 

236.110.
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