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Title 40

Displaying title 40, up to date as of 9/24/2021. Title 40 was last amended 9/24/2021.
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Title 40 Protection of Environment Part / Section
Chapter I Environmental Protection Agency 1 – 1099
Subchapter D Water Programs 100 – 149
Part 143 Other Safe Drinking Water Act Regulations 143.1 – 143.20
Subpart A National Secondary Drinking Water Regulations 143.1 – 143.9
§ 143.1 Purpose.
§ 143.2 Definitions.
§ 143.3 Secondary maximum contaminant levels.
§ 143.4 Monitoring.
§§ 143.5-143.9 [Reserved]