---
kind: "section"
citation: "40 C.F.R. § 61.23"
title: "40"
number: "61.23"
heading: "Determining compliance."
url: "https://uscodex.org/cfr/40/61.23"
---

# §61.23. Determining compliance.

- (a) Compliance with the emission standard in this subpart shall be determined and the effective dose equivalent calculated by the U.S. Environmental Protection Agency (EPA) computer code COMPLY-R. An underground uranium mine owner or operator shall calculate the source terms to be used for input into COMPLY-R by conducting testing in accordance with the procedures described in appendix B, Method 115, or
- (b) Owners or operators may demonstrate compliance with the emission standard in this subpart through the use of computer models that are equivalent to COMPLY-R provided that the model has received prior approval from EPA headquarters. EPA may approve a model in whole or in part and may limit its use to specific circumstances.

## Notes

### Amendments

[54 FR 51694, Dec. 15, 1989, as amended at 65 FR 62151, Oct. 17, 2000]

### Source

Source: 54 FR 51694, Dec. 15, 1989, unless otherwise noted.

### Authority

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

### Source

Source: 38 FR 8826, Apr. 6, 1973, unless otherwise noted.

### Amendments

[54 FR 51694, Dec. 15, 1989, as amended at 65 FR 62151, Oct. 17, 2000]