---
kind: "section"
citation: "40 C.F.R. § 52.1387"
title: "40"
number: "52.1387"
heading: "Visibility protection."
url: "https://uscodex.org/cfr/40/52.1387"
---

# §52.1387. Visibility protection.

- (a) The requirements of section 169A of the Clean Air Act are not met because the plan does not include approvable procedures for protection of visibility in mandatory Class I Federal areas.
- (b) [Reserved]
- (c) Montana's November 7, 2017 Progress Report meets the applicable regional haze requirements set forth in § [51.308(g)](/cfr/40/51.308.md?p=g) and [(h)](/cfr/40/51.308.md?p=h).

## Notes

### Amendments

[52 FR 45138, Nov. 24, 1987, as amended at 82 FR 3129, Jan. 10 2017; 84 FR 53061, Oct. 4, 2019]

### Authority

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

### Amendments

[40 FR 5521, Feb. 6, 1975]

### Amendments

[52 FR 45138, Nov. 24, 1987, as amended at 82 FR 3129, Jan. 10 2017; 84 FR 53061, Oct. 4, 2019]