# 40 CFR § 1043.55: Applying equivalent controls instead of complying with fuel requirements

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.55

## Section

- **Citation:** 40 CFR § 1043.55
- **Heading:** Applying equivalent controls instead of complying with fuel requirements
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 40—Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER U—AIR POLLUTION CONTROLS > PART 1043—CONTROL OF NOX, SOX, AND PM EMISSIONS FROM MARINE ENGINES AND VESSELS SUBJECT TO THE MARPOL PROTOCOL

## Text

Regulation 4 of Annex VI allows Administrations to approve the use of fuels not meeting the requirements of Regulation 14 of the Annex, provided the vessel applies a method that results in equivalent emission reductions. This section describes provisions related to applying this allowance.
(a) The U.S. Coast Guard is the approving authority under APPS for such equivalent methods for U.S.-flagged vessels.
(b) The provisions of this paragraph (b) apply for vessels equipped with controls certified by the U.S. Coast Guard or the Administration of a foreign-flag vessel to achieve emission levels equivalent to those achieved by the use of fuels meeting the applicable fuel sulfur limits of Regulation 14 of Annex VI. Fuels not meeting the applicable fuel sulfur limits of Regulation 14 of Annex VI may be used on such vessels consistent with the provisions of the IAPP certificate, APPS and Annex VI.
(c) Compliance with the requirements of this section does not affect the applicability of requirements or prohibitions specified by other statutes or regulations with respect to water pollution.
[75 FR 23013, Apr. 30, 2010, as amended at 88 FR 4664, Jan. 24, 2023]

## Nearby sections

- [40 CFR § 1027.101 § 1027.101 To whom do these requirements apply?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1027.101.md)
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- [40 CFR § 1027.150 § 1027.150 What definitions apply to this part?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1027.150.md)
- [40 CFR § 1027.155 § 1027.155 What abbreviations apply to this subpart?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1027.155.md)
- [40 CFR § 1043.30 § 1043.30 General obligations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.30.md)
- [40 CFR § 1043.41 § 1043.41 EIAPP certification process.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.41.md)
- [40 CFR § 1043.55 § 1043.55 Applying equivalent controls instead of complying with fuel requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.55.md)
- [40 CFR § 1043.60 § 1043.60 Operating requirements for engines and vessels subject to this part.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.60.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-1043.55. Check the current official text before relying on it. Not legal advice.