Site Feedback

Title 40

Displaying title 40, up to date as of 9/10/2026. Title 40 was last amended 9/09/2026.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

§ 466.25 Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicy owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) There shall be no discharge of process wastewater pollutants from metal preparation operations.

(b) The discharge of process wastewater pollutants from all porcelain enameling coating operations shall not exceed the values set forth below:

Subpart B—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
Mg/m2 (pounds per million ft2) of area coated
Chromium 0.47 (0.10) 0.19 (0.04)
Lead 0.13 (0.03) 0.11 (0.02)
Nickel 0.69 (0.14) 0.47 (0.10)
Zinc 1.29 (0.27) 0.53 (0.11)

[47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]