---
kind: "section"
citation: "40 C.F.R. § 52.1483"
title: "40"
number: "52.1483"
heading: "Malfunction regulations."
url: "https://uscodex.org/cfr/40/52.1483"
---

# §52.1483. Malfunction regulations.

- (a) The following regulations are disapproved because they would permit the exemption of sources from applicable emission limitations under certain situations and therefore they do not satisfy the enforcement imperatives of [section 110](/cfr/40/110.md) of the Clean Air Act.
  - (1) Clark County District Board of Health
    - (i) **Previously approved on May 14, 1973 and deleted without replacement on August 27, 1981—** [Section 12](/cfr/40/12.md) (Upset, Breakdown, or Scheduled Maintenance).
    - (ii) [Section 25](/cfr/40/25.md), [Rule 25.1](/cfr/40/25.1.md), submitted by the Governor on July 24, 1979.
    - (iii) [Section 25](/cfr/40/25.md), [Rules 25.1-25.1.4](/cfr/40/25.1-25.1.4.md), submitted by the Governor on November 17, 1981.
    - (iv) [Section 25](/cfr/40/25.md), “Affirmative Defense for Excess Emissions Due to Malfunctions, Startup, and Shutdown,” submitted by the Governor on September 1, 2010.

## Notes

### Amendments

[49 FR 10259, Mar. 20, 1984, as amended at 69 FR 54019, Sept. 7, 2004; 79 FR 13567, Mar. 11, 2014]

### Authority

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

### Amendments

[40 FR 5521, Feb. 6, 1975]

### Amendments

[49 FR 10259, Mar. 20, 1984, as amended at 69 FR 54019, Sept. 7, 2004; 79 FR 13567, Mar. 11, 2014]