Regulations last checked for updates: Jan 11, 2026

Title 40 - Protection of Environment last revised: Dec 31, 2026
All TitlesTitle 40Chapter IPart 66Appendix Appendix B - Appendix B to Part 66—Instruction Manual
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Appendix Appendix B - Appendix B to Part 66—Instruction Manual
Note:

For text of appendix B see appendix B to part 67.
authority: Sec. 120, Clean Air Act, as amended, 42 U.S.C. 7420.
source: 45 FR 50110, July 28, 1980, unless otherwise noted.
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