49 CFR § 399.203
Applicability
November 18, 2020
This subpart applies to all trucks and truck-tractors, having a high profile cab-over-engine (COE) configuration, for entrance, egress and back of cab access, manufactured on and after September 1, 1982.
[44 FR 43732, July 26, 1979, as amended at 46 FR 56799, Nov. 19, 1981]