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Title 49

Displaying title 49, up to date as of 9/10/2026. Title 49 was last amended 9/09/2026.
There have been changes in the last two weeks to Part 222.
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Title 49TransportationPart / Section
Subtitle BOther Regulations Relating to Transportation100 – 1699
Chapter IIFederal Railroad Administration, Department of Transportation200 – 299
Part 222Use of Locomotive Horns at Public Highway-Rail Grade Crossings222.1 – 222.59
Subpart AGeneral222.1 – 222.17
§ 222.1What is the purpose of this regulation?
§ 222.3What areas does this regulation cover?
§ 222.5What railroads does this regulation apply to?
§ 222.7What is this regulation's effect on State and local laws and ordinances?
§ 222.9Definitions.
§ 222.11What are the penalties for failure to comply with this part?
§ 222.13Who is responsible for compliance?
§ 222.15How does one obtain a waiver of a provision of this regulation?
§ 222.17How can a State agency become a recognized State agency?
Subpart BUse of Locomotive Horns222.21 – 222.27
§ 222.21When must a locomotive horn be used?
§ 222.23How does this regulation affect sounding of a horn during an emergency or other situations?
§ 222.25How does this rule affect private highway-rail grade crossings?
§ 222.27How does this rule affect pedestrian grade crossings?
Subpart CExceptions to the Use of the Locomotive Horn222.31 – 222.59
Appendix A to Part 222
Approved Supplementary Safety Measures
Appendix B to Part 222
Alternative Safety Measures
Appendix C to Part 222
Guide to Establishing Quiet Zones
Appendix D to Part 222
Determining Risk Levels
Appendix E to Part 222
Requirements for Wayside Horns
Appendix F to Part 222
Diagnostic Team Considerations
Appendix G to Part 222
Excess Risk Estimates for Public Highway-Rail Grade Crossings