49 C.F.R. § 238.501 Scope.
Title 49 - Transportation
This subpart contains inspection, testing, and maintenance requirements for railroad passenger equipment that operates at speeds exceeding 125 mph but not exceeding 150 mph.
Title 49: Transportation
PART 238—PASSENGER EQUIPMENT SAFETY STANDARDS
Subpart F—Inspection, Testing, and Maintenance Requirements for Tier II Passenger Equipment
§ 238.501 Scope.