---
kind: "section"
citation: "40 C.F.R. § 63.6604"
title: "40"
number: "63.6604"
heading: "What fuel requirements must I meet if I own or operate a stationary CI RICE?"
url: "https://uscodex.org/cfr/40/63.6604"
---

# §63.6604. What fuel requirements must I meet if I own or operate a stationary CI RICE?

- (a) If you own or operate an existing non-emergency, non-black start CI stationary RICE with a site rating of more than 300 brake HP with a displacement of less than 30 liters per cylinder that uses diesel fuel, you must use diesel fuel that meets the requirements in [40 CFR 1090.305](/cfr/40/1090.305.md) for nonroad diesel fuel.
- (b) Beginning January 1, 2015, if you own or operate an existing emergency CI stationary RICE with a site rating of more than 100 brake HP and a displacement of less than 30 liters per cylinder that uses diesel fuel and operates for the purpose specified in [§ 63.6640(f)(4)(ii)](/cfr/40/63.6640.md?p=f-4-ii), you must use diesel fuel that meets the requirements in [40 CFR 1090.305](/cfr/40/1090.305.md) for nonroad diesel fuel, except that any existing diesel fuel purchased (or otherwise obtained) prior to January 1, 2015, may be used until depleted.
- (c) [Reserved]
- (d) Existing CI stationary RICE located in Guam, American Samoa, the Commonwealth of the Northern Mariana Islands, at area sources in areas of Alaska that meet either [§ 63.6603(b)(1)](/cfr/40/63.6603.md?p=b-1) or [§ 63.6603(b)(2)](/cfr/40/63.6603.md?p=b-2), or are on offshore vessels that meet [§ 63.6603(c)](/cfr/40/63.6603.md?p=c) are exempt from the requirements of this section.

## Notes

### Amendments

[78 FR 6702, Jan. 30, 2013, as amended at 85 FR 78463, Dec. 4, 2020; 87 FR 48607, Aug. 10, 2022]

### Source

Source: 69 FR 33506, June 15, 2004, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.

### Amendments

[78 FR 6702, Jan. 30, 2013, as amended at 85 FR 78463, Dec. 4, 2020; 87 FR 48607, Aug. 10, 2022]