StacksVerified U.S. regulatory reference

45 CFR §3.27

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A person may not operate a bicycle, motorbike, or similar vehicle without a horn or other warning device, and, if the vehicle is operated between dusk and dawn, it must be equipped with an operating headlight, and taillight or reflector.