StacksVerified U.S. regulatory reference

49 CFR §230.21

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
When a steam locomotive number is changed, the steam locomotive owner and/or operator must reflect the change in the upper right-hand corner of all documentation related to the steam locomotive by showing the old and new numbers: Old No. 000 New No. XXX.