Regulations last checked for updates: May 10, 2026

Title 40 - Protection of Environment last revised: Aug 10, 2026
All TitlesTitle 40Chapter IPart 141Subpart OAppendix Appendix A - Appendix A to Subpart O of Part 141—Regulated Contaminants
Collapse to view onlyAppendix Appendix A - Appendix A to Subpart O of Part 141—Regulated Contaminants
Table of Contents

authority: 42 U.S.C. 300f,300g,300g,300g,300g,300g,300g,300j,300j,and
source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.
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