49 CFR § 222.45 - When is a railroad required to cease routine sounding of locomotive horns at crossings?

---
identifier: "/us/cfr/t49/s222.45"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 222.45 - When is a railroad required to cease routine sounding of locomotive horns at crossings?"
title_number: 49
title_name: "Transportation"
section_number: "222.45"
section_name: "When is a railroad required to cease routine sounding of locomotive horns at crossings?"
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "222"
part_name: "USE OF LOCOMOTIVE HORNS AT PUBLIC HIGHWAY-RAIL GRADE CROSSINGS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 20103, 20107, 20153, 21301, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89."
regulatory_source: "71 FR 47634, Aug. 17, 2006, unless otherwise noted."
cfr_part: "222"
---


# 222.45 When is a railroad required to cease routine sounding of locomotive horns at crossings?

On the date specified in a Notice of Quiet Zone Continuation or Notice of Quiet Zone Establishment that complies with the requirements set forth in § 222.43 of this part, a railroad shall refrain from, or cease, routine sounding of the locomotive horn at all public, private and pedestrian grade crossings identified in the Notice.