- (a) The frame or chassis of each commercial motor vehicle shall not be cracked, loose, sagging or broken.
- (b) Bolts or brackets securing the cab or the body of the vehicle to the frame must not be loose, broken, or missing.
- (c) The frame rail flanges between the axles shall not be bent, cut or notched, except as specified by the manufacturer.
- (d) Parts and accessories shall not be welded to the frame or chassis of a commercial motor vehicle except in accordance with the vehicle manufacturer's recommendations. Any welded repair of the frame must also be in accordance with the vehicle manufacturer's recommendations.
- (e) No holes shall be drilled in the top or bottom rail flanges, except as specified by the manufacturer.
[53 FR 49402, Dec. 7, 1988, as amended at 70 FR 48055, Aug. 15, 2005]