CFR /  Title 49  /  Part 195  /  Sec. 195.252 Backfilling.

When a ditch for a pipeline is backfilled, it must be backfilled in a manner that:

(a) Provides firm support under the pipe; and

(b) Prevents damage to the pipe and pipe coating from equipment or from the backfill material. [Amdt. 195-78, 68 FR 53528, Sept. 11, 2003]