40 C.F.R. § 80.1425

Renewable Identification Numbers (RINs)

Read at: eCFRecfr.gov CornellLII GovInfogovinfo.gov CasesGoogle Scholar

Link to an amendment published at 91 FR 16489, Apr. 1, 2026.

RINs generated on or after July 1, 2010 shall not be generated as a 38-digit code, but shall be identified by the information specified in paragraphs (a) through (i) of this section and introduced into EMTS as data elements during the generation of RINs pursuant to § 80.1452(b). For RINs generated prior to July 1, 2010, each RIN is a 38-digit code of the following form:

KYYYYCCCCFFFFFBBBBBRRD SSSSSSSSEEEEEEEE

(a) K is a number identifying the type of RIN as follows:

(1) K has the value of 1 when the RIN is assigned to a volume of renewable fuel pursuant to § 80.1426(e) and § 80.1428(a).

(2) K has the value of 2 when the RIN has been separated from a volume of renewable fuel pursuant to § 80.1429.

(b) YYYY is the calendar year in which the RIN was generated.

(c) CCCC is the registration number assigned, according to § 80.1450, to the producer or importer of the batch of renewable fuel.

(d) FFFFF is the registration number assigned, according to § 80.1450, to the facility at which the batch of renewable fuel was produced or imported.

(e) BBBBB is a serial number assigned to the batch which is chosen by the producer or importer of the batch such that no two batches have the same value in a given calendar year.

(f) RR is a number representing 10 times the equivalence value of the renewable fuel as specified in § 80.1415.

(g) D is a number determined according to § 80.1426(f) and identifying the type of renewable fuel, as follows:

(1) D has the value of 3 to denote fuel categorized as cellulosic biofuel.

(2) D has the value of 4 to denote fuel categorized as biomass-based diesel.

(3) D has the value of 5 to denote fuel categorized as advanced biofuel.

(4) D has the value of 6 to denote fuel categorized as renewable fuel.

(5) D has the value of 7 to denote fuel categorized as cellulosic diesel.

(h) SSSSSSSS is a number representing the first gallon-RIN associated with a batch of renewable fuel.

(i) EEEEEEEE is a number representing the last gallon-RIN associated with a volume of renewable fuel.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 79977, Dec. 21, 2010]

Notes of Decisions

Cited in 3 cases (2 in the last 5 years), 2020–2025 · leading case: Wynnewood Refining Company, LLC v. EPA

Sort: Relevance Newest Treatment

Wynnewood Refining Company, LLC v. EPA (2023) cadc “As for how obligated parties demonstrate compliance, the Act establishes a market-based program through which parties can purchase and trade credits.”

POET Biorefining - Hudson, LLC v. EPA (2020) ca8 “See 40 C.F.R. § 80.1425 (g). RINs assigned a “D6” code can only be used to satisfy the total renewable-fuel obligation, whereas RINs assigned a “D3” code can also be used to satisfy the advanced and cellulosic-biofuel obligations.”

EPA v. Calumet Shreveport Refining, L.L.C. (2025) scotus “See 40 CFR §§80.1425 , 80.1426(a). A refinery generates RINs whenever it blends renewable fuels, §80.”

Annotations are extracted automatically from the opinions in the Syfert caselaw corpus and ranked by authority, recency, and treatment. Dots show Syfertize treatment of the citing case itself.