CFR /  Title 49  /  Part 179  /  Sec. 179.202-3 Approval to operate at 286,000 gross rail load (GRL).

A tank car may be loaded to a gross weight on rail of up to 286,000 pounds (129,727 kg) upon approval by the Associate Administrator for Safety, Federal Railroad Administration (FRA). See Sec. 179.13. [80 FR 26749, May 8, 2015]