Regulations last checked for updates: May 30, 2026

Title 40 - Protection of Environment last revised: Aug 30, 2026
All TitlesTitle 40Chapter IPart 51Subpart DDAppendix Appendix M - Appendix M to Part 51—Recommended Test Methods for State Implementation Plans
Collapse to view onlyAppendix Appendix M - Appendix M to Part 51—Recommended Test Methods for State Implementation Plans
Table of Contents

authority: 23 U.S.C. 101; 42 U.S.C. 7401-7671q.
source: 36 FR 22398, Nov. 25, 1971, unless otherwise noted.
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