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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Mar 31, 2023
All Titles
Title 40
Chapter I
Part 133 - PART 133—SECONDARY TREATMENT REGULATION
§ 133.100 - Purpose.
§ 133.101 - Definitions.
§ 133.102 - Secondary treatment.
§ 133.103 - Special considerations.
§ 133.104 - Sampling and test procedures.
§ 133.105 - Treatment equivalent to secondary treatment.
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