Title 33 › Chapter 26— WATER POLLUTION PREVENTION AND CONTROL › Subchapter III— STANDARDS AND ENFORCEMENT › § 1317
The Administrator must publish a list of toxic pollutants from table 1 of Committee Print Numbered 95–30. That list had to be published no later than 30 days after December 27, 1977. The Administrator can add or remove pollutants later. When changing the list, the Administrator must consider things like how toxic a pollutant is, how long it lasts, how it breaks down, whether affected plants or animals live in the waters, how important those organisms are, and how badly they are harmed. The Administrator’s choices are final unless a court finds them arbitrary and capricious. Each pollutant on the list must have effluent limits based on the best available technology that is economically achievable for the source category named in the law. The Administrator may propose tougher limits or even bans. For any proposed limit, the public must have at least 60 days to comment, and a hearing must be held if someone asks for one within 30 days of the proposal. The Administrator must issue a final standard within 270 days after the proposal. All standards must include an ample margin of safety and must be reviewed at least every three years. Limits for the pollutants in table 1 had to be set as soon as practicable after December 27, 1977, but no later than July 1, 1980; limits for other pollutants must be set soon after they are listed. Each standard must say which types of sources it covers. Disposal of dredged material can be included after consulting the Secretary of the Army. Standards take effect on the dates set but no more than one year after they are issued, unless meeting them within one year is not technologically possible; in that case the effective date can be delayed up to three years. Before publishing rules, the Administrator must consult advisory groups, States, experts, and other federal agencies as much as possible. The Administrator must also publish pretreatment rules for publicly owned treatment works (POTWs) within 180 days after October 18, 1972, and update them as needed. These pretreatment rules apply to pollutants that POTWs cannot remove or that would interfere with their operation. The Administrator must finalize these rules no later than 90 days after proposing them and must set compliance times of no more than three years. If a POTW actually removes a toxic pollutant so that its discharge meets the applicable limits and sludge use/disposal is not prevented, the POTW owner or operator may change pretreatment requirements for the sources that send that pollutant. Pretreatment rules must be updated as technology improves and must name the categories of sources they cover. State or local pretreatment laws that do not conflict with these federal rules remain in effect. For new sources that would be covered by new-source standards, pretreatment rules must be issued at the same time. After any effluent or pretreatment standard takes effect, it is illegal to operate in violation of it. For an existing facility using an innovative system under section 1311(k), a POTW owner may delay the facility’s pretreatment deadline up to 2 years if the Administrator finds the system could be used industrywide and the Administrator (or an approved State in consultation with the Administrator) agrees the delay will not make the POTW violate its permits and concurs with the extension.
Full Legal Text
Navigation and Navigable Waters — Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 1317
Title 33 — Navigation and Navigable Waters
Last Updated
Apr 5, 2026
Release point: 119-73not60