---
kind: "section"
citation: "40 C.F.R. § 53.31"
title: "40"
number: "53.31"
heading: "Reserved"
url: "https://uscodex.org/cfr/40/53.31"
---

# §53.31. Reserved



## Notes

### Source

Source: 71 FR 61278, Oct. 17, 2006, unless otherwise noted.

### Authority

Authority: Sec. 301(a) of the Clean Air Act (42 U.S.C. sec. 1857g(a)), as amended by sec. 15(c)(2) of Pub. L. 91-604, 84 Stat. 1713, unless otherwise noted.

### Source

Source: 40 FR 7049, Feb. 18, 1975, unless otherwise noted.