Safety-Critical [Transportation] Law and Legal Definition

According to 49 CFR 238.5 [Title 49 – Transportation; Subtitle B -- Other Regulations Relating to Transportation; Chapter II -- Federal Railroad Administration, Department of Transportation; Part 238 -- Passenger Equipment Safety Standards; Subpart A – General], safety-critical means “a component, system, or task that, if not available, defective, not functioning, not functioning correctly, not performed, or not performed correctly, increases the risk of damage to passenger equipment or injury to a passenger, crewmember, or other person.”