---
kind: "section"
citation: "40 C.F.R. § 57.106"
title: "40"
number: "57.106"
heading: "Expiration date."
url: "https://uscodex.org/cfr/40/57.106"
---

# §57.106. Expiration date.


Each NSO shall state its expiration date. No NSO issued under this regulation shall expire later than January 1, 1988.


## Notes

### Authority

Authority: Secs. 110, 114, 119, 301, Clean Air Act, as amended (42 U.S.C. 7410, 7414, 7419, and 7601); sec. 406 of Pub. L. 95-95.

### Source

Source: 50 FR 6448, Feb. 15, 1985, unless otherwise noted.