---
kind: "section"
citation: "40 C.F.R. § 1090.1255"
title: "40"
number: "1090.1255"
heading: "Recordkeeping requirements for transmix, 500 ppm LM diesel fuel, and pipeline interface."
url: "https://uscodex.org/cfr/40/1090.1255"
---

# §1090.1255. Recordkeeping requirements for transmix, 500 ppm LM diesel fuel, and pipeline interface.

- (a) **Overview.** In addition to the requirements in [§ 1090.1205](/cfr/40/1090.1205.md), a transmix processor, transmix blender, transmix distributor, manufacturer or distributor of 500 ppm LM diesel fuel using transmix, or pipeline operator must keep records that include the information in this section.
- (b) **Transmix.**
  - (1) A transmix processor or transmix distributor must keep records that reflect the results of any sampling and testing required under subpart F or M of this part.
  - (2) A transmix processor must keep records showing the volumes of TGP recovered from transmix and the type and amount of any blendstock or PCG added to make gasoline from TGP under [§ 1090.505](/cfr/40/1090.505.md).
  - (3) A transmix processor that adds blendstock to TGP or PCG must keep records under [§ 1090.1210(d)](/cfr/40/1090.1210.md?p=d).
  - (4) A transmix blender must keep records showing compliance with the quality assurance program and/or sampling and testing requirements in [§ 1090.500](/cfr/40/1090.500.md), and for each batch of gasoline with which transmix is blended, the volume of the batch, and the volume of transmix blended into the batch.
- (c) **500 ppm LM diesel fuel.** A manufacturer or distributor of 500 ppm LM diesel fuel using transmix must keep records of the following information, as applicable:
  - (1) Copies of the compliance plan required under [§ 1090.515(g)](/cfr/40/1090.515.md?p=g).
  - (2) Documents demonstrating how the party complies with each applicable element of the compliance plan under [§ 1090.515(g)](/cfr/40/1090.515.md?p=g).
  - (3) Documents and copies of calculations used to determine compliance with the 500 ppm LM diesel fuel volume requirements under [§ 1090.515(c)](/cfr/40/1090.515.md?p=c).
  - (4) Documents or information that demonstrates that the 500 ppm LM diesel fuel was only used in locomotive or marine engines that are not required to use ULSD under 40 CFR [1033.815](/cfr/40/1033.815.md) or [40](/cfr/40/40.md) CFR 1042.660, respectively.
- (d) **Pipeline interface.** A pipeline operator must keep records that demonstrate compliance with the pipeline interface handling practices in [§ 1090.520](/cfr/40/1090.520.md).

## Notes

### Amendments

[85 FR 78469, Dec. 4, 2020, as amended at 90 FR 4357, Jan. 15, 2025]

### Authority

Authority: 42 U.S.C. 7414, 7521, 7522-7525, 7541, 7542, 7543, 7545, 7547, 7550, and 7601.

### Source

Source: 85 FR 78469, Dec. 4, 2020, unless otherwise noted.

### Amendments

[85 FR 78469, Dec. 4, 2020, as amended at 90 FR 4357, Jan. 15, 2025]