# 40 C.F.R. § 61.103 (2026): Determining compliance

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_103

## Section

- **Citation:** 40 C.F.R. § 61.103 (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 I / § 61.103: § 61.103   Determining compliance.

## Text

(a) Compliance with the emission standard in this subpart shall be determined through the use of either the EPA computer code COMPLY or the alternative requirements of appendix E. Facilities emitting radionuclides not listed in COMPLY or appendix E shall contact EPA to receive the information needed to determine dose. The source terms to be used for input into COMPLY shall be determined through the use of the measurement procedures listed in § 61.107 or the emission factors in appendix D or through alternative procedures for which EPA has granted prior approval; or, (b) Facilities may demonstrate compliance with the emission standard in this subpart through the use of computer models that are equivalent to COMPLY, provided that the model has received prior approval from EPA headquarters. Any facility using a model other than COMPLY must file an annual report. EPA may approve an alternative model in whole or in part and may limit its use to specific circumstances.

## Nearby sections

- [40 C.F.R. § 61.100 (2026) § 61.100   Applicability.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_100.md)
- [40 C.F.R. § 61.101 (2026) § 61.101   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_101.md)
- [40 C.F.R. § 61.102 (2026) § 61.102   Standard.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_102.md)
- [40 C.F.R. § 61.103 (2026) § 61.103   Determining compliance.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_103.md)
- [40 C.F.R. § 61.104 (2026) § 61.104   Reporting requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_104.md)
- [40 C.F.R. § 61.105 (2026) § 61.105   Recordkeeping requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_105.md)
- [40 C.F.R. § 61.106 (2026) § 61.106   Applications to construct or modify.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_106.md)
- [40 C.F.R. § 61.107 (2026) § 61.107   Emission determination.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_107.md)
- [40 C.F.R. § 61.108 (2026) § 61.108   Exemption from the reporting and testing requirements of 40 CFR 61.10.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_108.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T40_P61_S61_103. Check the current official text before relying on it. Not legal advice.