42 U.S.C. § 7661
Section 7661 · Definitions
Amended 2 times on record
Applied in 72 court decisions — leading case Clean Air Implementation Project v. Environmental Protection Agency (1998)
Most recently applied in Environmental Integrity Proj v. EPA (August 2020)
How often courts cite this section
Court decisions citing this, by year.Markers show enactment, consequential amendments, and circuit splits over this section — watch for a citation surge after a change or a disagreement. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
As used in this subchapter—
(1) Affected source
The term “affected source” shall have the meaning given such term in subchapter IV–A of this chapter.
(2) Major source
The term “major source” means any stationary source (or any group of stationary sources located within a contiguous area and under common control) that is either of the following:
(A) A major source as defined in section 7412 of this title.
(B) A major stationary source as defined in section 7602 of this title or part D of subchapter I of this chapter.
(3) Schedule of compliance
The term “schedule of compliance” means a schedule of remedial measures, including an enforceable sequence of actions or operations, leading to compliance with an applicable implementation plan, emission standard, emission limitation, or emission prohibition.
(4) Permitting authority
The term “permitting authority” means the Administrator or the air pollution control agency authorized by the Administrator to carry out a permit program under this subchapter.