49 C.F.R. § 37.211 Effect of NHTSA and FHWA safety rules.
Title 49 - Transportation
OTRB operators are not required to take any action under this subpart that would violate an applicable National Highway Traffic Safety Administration or Federal Highway Administration safety rule.
Title 49: Transportation
PART 37—TRANSPORTATION SERVICES FOR INDIVIDUALS WITH DISABILITIES (ADA)
Subpart H—Over-the-Road Buses (OTRBs)
§ 37.211 Effect of NHTSA and FHWA safety rules.