---
kind: "section"
citation: "40 C.F.R. § 52.1436"
title: "40"
number: "52.1436"
heading: "Significant deterioration of air quality."
url: "https://uscodex.org/cfr/40/52.1436"
---

# §52.1436. Significant deterioration of air quality.


The requirements of sections 160 through 165 of the Clean Air Act are met except as noted in paragraphs [(a)](#a) and [(b)](#b) of this section. The EPA is retaining [§ 52.21](/cfr/40/52.21.md) except paragraph (a)(1) as part of the Nebraska SIP for the following types of sources:

- (a) Sources proposing to construct on Indian lands in Nebraska; and,
- (b) **Enforcement of permits issued by EPA prior to the July 28, 1983, delegation of authority to Nebraska.**

## Notes

### Amendments

[49 FR 29599, July 23, 1984, as amended at 68 FR 11323, Mar. 10, 2003; 68 FR 74489, Dec. 24, 2003]

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Amendments

[40 FR 5521, Feb. 6, 1975]

### Amendments

[49 FR 29599, July 23, 1984, as amended at 68 FR 11323, Mar. 10, 2003; 68 FR 74489, Dec. 24, 2003]