---
kind: "section"
citation: "40 C.F.R. § 80.115"
title: "40"
number: "80.115"
heading: "RNG RIN separators."
url: "https://uscodex.org/cfr/40/80.115"
---

# §80.115. RNG RIN separators.

- (a) **General requirements.**
  - (1) Any RNG RIN separator must comply with the requirements of this section.
  - (2) The RNG RIN separator must also comply with all other applicable requirements of this part and [40 CFR part 1090](/cfr/40/part1090.md).
  - (3) If the RNG RIN separator meets the definition of more than one type of regulated party under this part or [40 CFR 1090](/cfr/40/1090.md), the RNG RIN separator must comply with the requirements applicable to each of those types of regulated parties.
  - (4) The RNG RIN separator must comply with all applicable requirements of this part, regardless of whether the requirements are identified in this section.
- (b) **Registration.** The RNG RIN separator must register with EPA under §§ [80.135](/cfr/40/80.135.md) and [80.1450](/cfr/40/80.1450.md) and [40 CFR part 1090](/cfr/40/part1090.md), [subpart I](/cfr/40/subpartI.md), as applicable.
- (c) **Reporting.** The RNG RIN separator must submit reports to EPA under §§ [80.140](/cfr/40/80.140.md), [80.1451](/cfr/40/80.1451.md), and [80.1452](/cfr/40/80.1452.md), as applicable.
- (d) **Recordkeeping.** The RNG RIN separator must create and maintain records under §§ [80.145](/cfr/40/80.145.md) and [80.1454](/cfr/40/80.1454.md).
- (e) **PTDs.** On each occasion when the RNG RIN separator transfers title of renewable fuel and RINs to another party, the transferor must provide to the transferee PTDs under [§ 80.1453](/cfr/40/80.1453.md).
- (f) **Measurement.**
  - (1) All measurements must be done in accordance with [§ 80.155](/cfr/40/80.155.md).
  - (2) An RNG RIN separator must measure the volume of natural gas, in Btu LHV, withdrawn from the natural gas commercial pipeline system.
- (g) **Attest engagements.** The RNG RIN separator must submit annual attest engagement reports to EPA under §§ [80.165](/cfr/40/80.165.md) and [80.1464](/cfr/40/80.1464.md) using procedures specified in 40 CFR [1090.1800](/cfr/40/1090.1800.md) and [1090.1805](/cfr/40/1090.1805.md).

## Notes

### Amendments

[88 FR 44564, July 12, 2023, as amended at 91 FR 16485, Apr. 1, 2026]

### Source

Source: 88 FR 44564, July 12, 2023, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7414, 7521, 7542, 7545, and 7601(a).

### Source

Source: 38 FR 1255, Jan. 10, 1973, unless otherwise noted.

### Amendments

[88 FR 44564, July 12, 2023, as amended at 91 FR 16485, Apr. 1, 2026]