---
kind: "section"
citation: "40 C.F.R. § 1054.615"
title: "40"
number: "1054.615"
heading: "What is the exemption for engines certified to standards for Large SI engines?"
url: "https://uscodex.org/cfr/40/1054.615"
---

# §1054.615. What is the exemption for engines certified to standards for Large SI engines?

- (a) An engine is exempt from the requirements of this part if it is in an emission family that has a valid certificate of conformity showing that it meets emission standards and other requirements under [40 CFR part 1048](/cfr/40/part1048.md) for the appropriate model year.
- (b) The only requirements or prohibitions from this part that apply to an engine that is exempt under this section are in this section.
- (c) If your engines do not have the certificate required in [paragraph (a)](#a) of this section, they will be subject to the provisions of this part. Introducing these engines into U.S. commerce without a valid exemption or certificate of conformity violates the prohibitions in [40 CFR 1068.101(a)](/cfr/40/1068.101.md?p=a).
- (d) Engines exempted under this section are subject to all the requirements affecting engines under [40 CFR part 1048](/cfr/40/part1048.md), including evaporative emission standards. The requirements and restrictions of [40 CFR part 1048](/cfr/40/part1048.md) apply to anyone manufacturing these engines, anyone manufacturing equipment that uses these engines, and all other persons in the same manner as if these were nonroad spark-ignition engines above 19 kW.
- (e) Engines exempted under this section may not generate or use emission credits under this part 1054.

## Notes

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 73 FR 59259, Oct. 8, 2008, unless otherwise noted.