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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 23, 2015

Title 40Chapter ISubchapter NPart 422 → Subpart B


Title 40: Protection of Environment
PART 422—PHOSPHATE MANUFACTURING POINT SOURCE CATEGORY


Subpart B—Phosphorus Consuming Subcategory


Contents
§422.20   Applicability; description of the phosphorus consuming subcategory.

§422.20   Applicability; description of the phosphorus consuming subcategory.

The provisions of this subpart are applicable to discharges of pollutants resulting from the manufacture of phosphoric acid, phosphorus pentoxide, phosphorus pentasulfide, phosphorus trichloride, and phosphorus oxychloride directly from elemental phosphorus. The production of phosphorus trichloride and phosphorus oxychloride creates waste water pollutants not completely amenable to the procedures utilized for best practicable control technology currently available. The standards set for phosphorus trichloride manufacture and phosphorus oxychloride manufacture, accordingly, must differ from the rest of the subcategory at this level of treatment.


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