# 40 C.F.R. § 60.55a (2026): Standard for nitrogen oxides

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_55a

## Section

- **Citation:** 40 C.F.R. § 60.55a (2026)
- **Heading:** Standard for nitrogen oxides
- **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 60 / Subpart Ea / § 60.55a: § 60.55a   Standard for nitrogen oxides.

## Text

On and after the date on which the initial compliance test is completed or is required to be completed under § 60.8, no owner or operator of an affected facility located within a large MWC plant shall cause to be discharged into the atmosphere from that affected facility any gases that contain nitrogen oxides in excess of 180 parts per million by volume, corrected to 7 percent oxygen (dry basis). The averaging time is specified under § 60.58a(g).

## Nearby sections

- [40 C.F.R. § 60.50a (2026) § 60.50a   Applicability and delegation of authority.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_50a.md)
- [40 C.F.R. § 60.51a (2026) § 60.51a   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_51a.md)
- [40 C.F.R. § 60.52a (2026) § 60.52a   Standard for municipal waste combustor metals.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_52a.md)
- [40 C.F.R. § 60.53a (2026) § 60.53a   Standard for municipal waste combustor organics.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_53a.md)
- [40 C.F.R. § 60.54a (2026) § 60.54a   Standard for municipal waste combustor acid gases.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_54a.md)
- [40 C.F.R. § 60.55a (2026) § 60.55a   Standard for nitrogen oxides.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_55a.md)
- [40 C.F.R. § 60.56a (2026) § 60.56a   Standards for municipal waste combustor operating practices.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_56a.md)
- [40 C.F.R. § 60.58a (2026) § 60.58a   Compliance and performance testing.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_58a.md)
- [40 C.F.R. § 60.59a (2026) § 60.59a   Reporting and recordkeeping requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_59a.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T40_P60_S60_55a. Check the current official text before relying on it. Not legal advice.