40 CFR §80.130

1. (a)General requirements.
   1. (1)Any party that generates, assigns, separates, or retires RINs for renewable CNG/LNG from a biogas closed distribution system must comply with the requirements of this section.
   2. (2)Parties must report all RIN transactions to EMTS as specified in § 80.1452.
2. (b)RIN generation.
   1. (1)Biogas closed distribution system RIN generators must generate RINs using the applicable requirements for RIN generation in under this part.
   2. (2)RINs for renewable CNG/LNG from a biogas closed distribution system may be generated if all the following requirements are met:
      1. (i)The renewable CNG/LNG is produced from renewable biomass and qualifies to generate RINs under an approved pathway.
      2. (ii)The biogas closed distribution system RIN generator has entered into a written contract for the sale or use of a specific quantity of renewable CNG/LNG for use as transportation fuel, and has obtained affidavits from all parties selling or using the renewable CNG/LNG certifying that the renewable CNG/LNG was used as transportation fuel.
      3. (iii)The renewable CNG/LNG is used as transportation fuel and for no other purpose.
3. (c)RIN separation. A biogas closed distribution system RIN generator must separate RINs generated for renewable CNG/LNG under § 80.1429(b)(5)(ii).
4. (d)RIN retirement. A party must retire RINs generated for renewable CNG/LNG from a biogas closed distribution if any of the conditions specified in § 80.1434(a) apply and must comply with § 80.1434(b).