# 40 C.F.R. § 61.23 (2026): Determining compliance

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_23

## Section

- **Citation:** 40 C.F.R. § 61.23 (2026)
- **Heading:** Determining compliance
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 40 CFR: Protection of Environment / Chapter I / Part 61 / Subpart B / § 61.23: § 61.23   Determining compliance.

## Text

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

## Nearby sections

- [40 C.F.R. § 61.20 (2026) § 61.20   Designation of facilities.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_20.md)
- [40 C.F.R. § 61.21 (2026) § 61.21   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_21.md)
- [40 C.F.R. § 61.22 (2026) § 61.22   Standard.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_22.md)
- [40 C.F.R. § 61.23 (2026) § 61.23   Determining compliance.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_23.md)
- [40 C.F.R. § 61.24 (2026) § 61.24   Annual reporting requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_24.md)
- [40 C.F.R. § 61.25 (2026) § 61.25   Recordkeeping requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_25.md)
- [40 C.F.R. § 61.26 (2026) § 61.26   Exemption from the reporting and testing requirements of 40 CFR 61.10.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_26.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_23. Check the current official text before relying on it. Not legal advice.