---
kind: "section"
citation: "40 C.F.R. § 97.81"
title: "40"
number: "97.81"
heading: "General."
url: "https://uscodex.org/cfr/40/97.81"
---

# §97.81. General.


Except otherwise as provided in this part, a NOX Budget opt-in unit shall be treated as a NOX Budget unit for purposes of applying subparts A through H of this part.


## Notes

### Authority

Authority: 42 U.S.C. 7401, 7403, 7410, 7426, 7491, 7601, and 7651, et seq.

### Source

Source: 65 FR 2727, Jan. 18, 2000, unless otherwise noted. 71 FR 25396, 25422, and 25443, Apr. 28, 2006