StacksVerified U.S. regulatory reference

30 CFR §57.14216

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Backpoling of trolleys is prohibited except where there is inadequate clearance to reverse the trolley pole. Where backpoling is required, it shall be done only at the minimum tram speed of the trolley.