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The Code of Federal Regulations (CFR) annual edition is the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government produced by the Office of the Federal Register (OFR) and the Government Publishing Office.


Parallel Table of Authorities and Rules for the Code of Federal Regulations and the United States Code
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Electronic Code of Federal Regulations

e-CFR data is current as of April 16, 2015

Title 40Chapter ISubchapter DPart 142Subpart A → §142.4


Title 40: Protection of Environment
PART 142—NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION
Subpart A—General Provisions


§142.4   State and local authority.

Nothing in this part shall diminish any authority of a State or political subdivision to adopt or enforce any law or regulation respecting drinking water regulations or public water systems, but no such law or regulation shall relieve any person of any requirements otherwise applicable under this part.


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