StacksVerified U.S. regulatory reference

30 CFR §57.12081

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
All metal pipelines, 1,000 feet or more in length running parallel to trolley tracks, that are used as a ground return circuit shall be bonded to the return circuit rail at the ends of the pipeline and at intervals not to exceed 500 feet.