---
kind: "section"
citation: "40 C.F.R. § 75.45"
title: "40"
number: "75.45"
heading: "Daily quality assurance criteria."
url: "https://uscodex.org/cfr/40/75.45"
---

# §75.45. Daily quality assurance criteria.


The owner or operator shall either demonstrate that daily tests equivalent to those specified in appendix B of this part can be performed on the alternative monitoring system or demonstrate and document that such tests are unnecessary for providing quality-assured data.


## Notes

### Authority

Authority: 42 U.S.C. 7401-7671q and 7651k note.

### Source

Source: 58 FR 3701, Jan. 11, 1993, unless otherwise noted.