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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 1033
Subpart J - Subpart J—Definitions and Other Reference Information
§ 1033.901 - Definitions.
§ 1033.905 - Symbols, acronyms, and abbreviations.
§ 1033.915 - Confidential information.
§ 1033.920 - How to request a hearing.
§ 1033.925 - Reporting and recordkeeping requirements.
Appendix Appendix A - Appendix A to Part 1033—Original Standards for Tier 0, Tier 1 and Tier 2 Locomotives
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