U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 49Chapter IIPart 220 - PART 220—RAILROAD COMMUNICATIONS
Subpart A [§ 220.1 - § 220.13] - Subpart A—General
Subpart B [§ 220.21 - § 220.61] - Subpart B—Radio and Wireless Communication Procedures
Subpart C [§ 220.301 - § 220.315] - Subpart C—Electronic Devices
Subpart 0 -
Appendix Appendix A - Appendix A to Part 220—Recommended Phonetic Alphabet
Appendix Appendix B - Appendix B to Part 220—Recommended Pronunciation of Numerals
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