---
kind: "section"
citation: "40 C.F.R. § 60.5970"
title: "40"
number: "60.5970"
heading: "What schedule must I follow for the stack testing?"
url: "https://uscodex.org/cfr/40/60.5970"
---

# §60.5970. What schedule must I follow for the stack testing?

- (a) Conduct initial stack tests for sulfur dioxide, nitrogen oxides, and each of the pollutants listed in [§ 60.5960](/cfr/40/60.5960.md) within 60 days after your municipal waste combustor reaches the maximum load level at which it will operate, but no later than 180 days after its initial startup.
- (b) Conduct annual stack tests for the each of the pollutants listed in [§ 60.5960](/cfr/40/60.5960.md) after the initial stack test. Conduct each annual stack test no less than 9 calendar months and no more than 15 calendar months following the previous performance test, except as specified in [§ 60.5985](/cfr/40/60.5985.md) of this section. You must complete five performance tests in each 5-year calendar period.

## Notes

### Source

Source: 91 FR 11833, 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.