U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 1037Subpart I - Subpart I—Definitions and Other Reference Information
§ 1037.801 - Definitions.
§ 1037.805 - Symbols, abbreviations, and acronyms.
§ 1037.810 - Incorporation by reference.
§ 1037.815 - Confidential information.
§ 1037.820 - Requesting a hearing.
§ 1037.825 - Reporting and recordkeeping requirements.
Appendix Appendix A - Appendix A to Part 1037 — Heavy-Duty Transient Test Cycle
Appendix Appendix B - Appendix B to Part 1037—Power Take-Off Test Cycle
Appendix Appendix C - Appendix C to Part 1037—Emission Control Identifiers
Appendix Appendix D - Appendix D to Part 1037—Heavy-Duty Grade Profile for Steady-State Test Cycles
Appendix Appendix E - Appendix E to Part 1037—Power Take-Off Utility Factors
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