---
kind: "section"
citation: "40 C.F.R. § 62.15165"
title: "40"
number: "62.15165"
heading: "What happens to the emission limits during periods of startup, shutdown, and malfunction?"
url: "https://uscodex.org/cfr/40/62.15165"
---

# §62.15165. What happens to the emission limits during periods of startup, shutdown, and malfunction?

- (a) The emission limits of this subpart apply at all times except during periods of municipal waste combustion unit startup, shutdown, or malfunction.
- (b) Each startup, shutdown, or malfunction must not last for longer than 3 hours.
- (c) A maximum of 3 hours of test data can be dismissed from compliance calculations during periods of startup, shutdown, or malfunction.
- (d) During startup, shutdown, or malfunction periods longer than 3 hours, emissions data cannot be discarded from compliance calculations and all provisions under [§ 60.11(d)](/cfr/40/60.11.md?p=d) of [subpart A](/cfr/40/subpartA.md) of [40 CFR part 60](/cfr/40/part60.md) apply.

## Notes

### Source

Source: 68 FR 5158, Jan. 31, 2003, unless otherwise noted.

### Authority

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

### Source

Source: 43 FR 51393, Nov. 3, 1978, unless otherwise noted.