CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER D—WATER PROGRAMS (Parts 100–149) > PART 125—CRITERIA AND STANDARDS FOR THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM > SUBPART G—Criteria for Modifying the Secondary Treatment Requirements Under Section 301(h) of the Clean Water Act (§125.56 to §125.68) > 125.56—Scope and purpose.

125.56—Scope and purpose.

This subpart establishes the criteria to be applied by EPA in acting on section 301(h) requests for modifications to the secondary treatment requirements. It also establishes special permit conditions which must be included in any permit incorporating a section 301(h) modification of the secondary treatment requirements (“ section 301(h) modified permit”).