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Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER D—WATER PROGRAMS
PART 142—NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION
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Subpart A—General Provisions
§142.1 Applicability.
§142.2 Definitions.
§142.3 Scope.
§142.4 State and local authority.
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