---
kind: "section"
citation: "40 C.F.R. § 60.6480"
title: "40"
number: "60.6480"
heading: "What is my schedule for evaluating continuous emission monitoring systems?"
url: "https://uscodex.org/cfr/40/60.6480"
---

# §60.6480. What is my schedule for evaluating continuous emission monitoring systems?

- (a) Conduct annual relative accuracy test audits of your continuous emission monitoring systems no less than 9 calendar months and no more than 15 calendar months following the previous performance test; you must complete five relative accuracy test audits in each 5-year calendar period.
- (b) Evaluate your continuous emission monitoring systems daily and quarterly as specified in procedure 1 in appendix F of this part.

## Notes

### Source

Source: 91 FR 11860, Mar. 10, 2026, unless otherwise noted.

### Authority

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

### Source

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