FRA Cheat Sheet 2026

The 30 highest-yield FRA facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which communication tool is primarily used by train crews for operational coordination? → Two-way radios
2. What color and shape is the placard required for Division 2.3 (Poisonous Gas) materials? → White diamond with black skull and crossbones
3. Under FRA regulations, how must a dispatcher communicate a track warrant to a train crew? → Verbally over radio with the crew required to write and repeat back all authority limits
4. Which entity is responsible for certifying the laboratories that perform FRA-mandated drug testing? → The Department of Health and Human Services (HHS) / SAMHSA
5. What type of FRA drug test must be administered after a train accident that meets reporting thresholds? → Post-accident testing
6. What is the minimum height above the top of the rail that a knuckle coupler must be maintained for standard freight cars? → 31.5 inches
7. When a conflict arises between standard procedures and a unique situation in Track & Roadway Safety, what should a FRA professional prioritize? → Safety and ethical obligations while seeking expert consultation
8. What is the FRA significance of 'positive train identification' in communication protocols? → Confirming a train's identity and location before issuing movement authority
9. When a conflict arises between standard procedures and a unique situation in Locomotive Engine Systems, what should a FRA professional prioritize? → Safety and ethical obligations while seeking expert consultation
10. Which FRA regulation governs locomotive safety standards, including cab conditions and safety appliances? → 49 CFR Part 229
11. What does 'fouling the track' mean in the context of FRA communication and work zone protection? → Occupying space close enough to a track that a passing train could cause injury or damage
12. What information must appear FIRST on the hazardous materials description line of a shipping paper? → The UN identification number
13. Under FRA regulations, what is the maximum allowable lateral flange wear for a wheel before it must be removed from service? → 1/2 inch
14. If a train is en route and a crew member reaches the Hours of Service limit, what is the railroad's primary obligation under FRA regulations? → Relieve the employee as soon as possible without undue delay
15. Which FRA Hours of Service provision applies specifically to railroad employees who both operate trains AND perform dispatching duties during the same tour? → The stricter 12-hour limit and associated rest requirements govern the entire period
16. What is the PRIMARY purpose of continuing education requirements in Signal Systems & Train Control for FRA professionals? → Maintaining current knowledge and competency as the field evolves
17. Under FRA rules, a railroad that requires an employee to deadhead (travel as a passenger to an assignment) must count that deadhead time as: → On-duty time only if it immediately follows an on-duty period
18. Under 49 CFR, which document must accompany a shipment of hazardous materials throughout its rail journey? → Shipping paper or waybill with required hazmat entries
19. What FRA rule governs the use of cell phones by locomotive engineers while on duty? → Personal cell phone use is prohibited for engineers while operating a locomotive
20. Which of the following is required under FRA safety compliance regulations? → Written documentation of equipment inspections
21. Under 49 CFR Part 174, where must hazmat shipping papers be kept while a train is in motion? → In a holder or location readily accessible to the train crew in the locomotive cab
22. When inspecting a freight car's truck, a lateral motion exceeding what tolerance requires removal from service under FRA standards? → 1/2 inch
23. Under what condition is a locomotive engineer permitted to exceed the posted timetable speed? → Under no condition — timetable speed is the maximum authorized speed
24. What is the purpose of the Hazardous Materials Regulations (HMR)? → To ensure safe transport of hazardous goods
25. Which federal agency has primary regulatory jurisdiction over hazardous materials transportation by rail in the United States? → PHMSA and FRA jointly
26. Which standard of practice is MOST important for ensuring quality in Locomotive Engine Systems? → Following evidence-based protocols while adapting to specific circumstances
27. What is a primary responsibility of the Federal Railroad Administration (FRA)? → Enforce rail safety and operational standards
28. Which packing group designation indicates the HIGHEST degree of danger for a hazardous material? → Packing Group I
29. A freight train loses air on the brake pipe while descending a steep grade. What is the automatic result of this condition? → The brakes automatically apply on all cars equipped with automatic air brakes
30. Which standard of practice is MOST important for ensuring quality in Signal Systems & Train Control? → Following evidence-based protocols while adapting to specific circumstances