40 CFR § 1090.145 - Transmix processors.
---
identifier: "/us/cfr/t40/s1090.145"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1090.145 - Transmix processors."
title_number: 40
title_name: "Protection of Environment"
section_number: "1090.145"
section_name: "Transmix processors."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "U"
subchapter_name: "AIR POLLUTION CONTROLS"
part_number: "1090"
part_name: "REGULATION OF FUELS, FUEL ADDITIVES, AND REGULATED BLENDSTOCKS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7414, 7521, 7522-7525, 7541, 7542, 7543, 7545, 7547, 7550, and 7601."
regulatory_source: "85 FR 78469, Dec. 4, 2020, unless otherwise noted."
cfr_part: "1090"
---
# 1090.145 Transmix processors.
A transmix processor must comply with the requirements of this section.
(a) *Transmix requirements.* A transmix processor must comply with the transmix requirements of subpart F of this part.
(b) *Registration.* A transmix processor must register with EPA under subpart I of this part.
(c) *Certification and designation.* A transmix processor must certify and designate the fuel they produce under subpart K of this part.
(d) *PTDs.* On each occasion when a transmix processor produces a batch of fuel or transfers custody of or title to any fuel, fuel additive, or regulated blendstock, the transferor must provide to the transferee PTDs under subpart L of this part.
(e) *Sampling, testing, and retention requirements.* A transmix processor must conduct sampling, testing, and sample retention in accordance with subparts F and N of this part.
(f) *Reporting.* A transmix processor must submit reports to EPA under subpart J of this part.
(g) *Annual attestation engagement.* A transmix processor must submit annual attestation engagement reports to EPA under subpart S of this part.
[85 FR 78469, Dec. 4, 2020, as amended at 90 FR 4344, Jan. 15, 2025]