49 C.F.R. § 373.101
Every motor carrier subject to § 373.100 shall issue a receipt or bill of lading for property tendered for transportation in interstate or foreign commerce containing the following information:
(e) Weight, volume, or measurement of freight (if applicable to the rating of the freight).
The carrier shall keep a record of this information as prescribed in 49 CFR part 379.
[55 FR 11198, Mar. 27, 1990, as amended at 56 FR 30874, July 8, 1991; 62 FR 15423, Apr. 1, 1997; 81 FR 68345, Oct. 4, 2016]