49 CFR §392.11
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Every commercial motor vehicle other than those listed in § 392.10 shall, upon approaching a railroad grade crossing, be driven at a rate of speed which will permit said commercial motor vehicle to be stopped before reaching the nearest rail of such crossing and shall not be driven upon or over such crossing until due caution has been taken to ascertain that the course is clear.