Legal — By City
Train Horn Laws in Salt Lake City Utah
Salt Lake is a major Wasatch Front rail hub — UTA FrontRunner commuter, TRAX light rail, UP and BNSF freight, plus Amtrak's California Zephyr. Multiple horn regulatory regimes apply by track type.
By Train Horn Editorial Published April 28, 2026
Disclaimer
Informational only — verify with Salt Lake City and FRA Quiet Zone Database.
Federal framework
Under 49 CFR § 222, every FRA-regulated locomotive must sound • • — • at 96–110 dB at every public highway-rail at-grade crossing. UTA TRAX light rail operates under different rules (Federal Transit Administration regulations, plus state and local) — TRAX horn use is more limited.
Salt Lake City rail context
- UTA FrontRunner — commuter rail Provo–Salt Lake–Ogden (FRA-regulated, full horn requirements at grade crossings)
- UTA TRAX — light rail (Red, Blue, Green lines) — separate regulatory regime
- UTA S-Line streetcar — Sugar House neighborhood, also separate regulatory regime
- Union Pacific — heavy freight on multiple subdivisions
- BNSF — freight
- Amtrak California Zephyr — daily Chicago–Emeryville service via Denver and Reno, passing through SLC
How to verify quiet-zone status
Vehicle train horn rules — Utah state law
See our Utah train horn laws.