---
kind: "section"
citation: "40 C.F.R. § 60.264"
title: "40"
number: "60.264"
heading: "Emission monitoring."
url: "https://uscodex.org/cfr/40/60.264"
---

# §60.264. Emission monitoring.

- (a) The owner or operator subject to the provisions of this subpart shall install, calibrate, maintain and operate a continuous monitoring system for measurement of the opacity of emissions discharged into the atmosphere from the control device(s).
- (b) For the purpose of reports required under [§ 60.7(c)](/cfr/40/60.7.md?p=c), the owner or operator shall report as excess emissions all six-minute periods in which the average opacity is 15 percent or greater.
- (c) The owner or operator subject to the provisions of this subpart shall submit a written report of any product change to the Administrator. Reports of product changes must be postmarked not later than 30 days after implementation of the product change.

## Notes

### Source

Source: 41 FR 18501, May 4, 1976, unless otherwise noted.

### Authority

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

### Source

Source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.