27 CFR § 21.130-T - Straight run gasoline.
---
identifier: "/us/cfr/t27/s21.130-T"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "27 CFR § 21.130-T - Straight run gasoline."
title_number: 27
title_name: "Alcohol, Tobacco Products and Firearms"
section_number: "21.130-T"
section_name: "Straight run gasoline."
chapter_name: "ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY"
subchapter_number: "A"
subchapter_name: "ALCOHOL"
part_number: "21"
part_name: "FORMULAS FOR DENATURED ALCOHOL AND RUM"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 552(a); 26 U.S.C. 5242, 7805."
regulatory_source: "T.D. ATF-133, 48 FR 24673, June 2, 1983, unless otherwise noted."
cfr_part: "21"
---
# 21.130-T Straight run gasoline.
(a) *General.* Straight run gasoline is a mixture consisting predominantly (greater than 60 percent by volume) of C<sub>4,</sub> C<sub>5</sub>, C<sub>6</sub>, C<sub>7</sub> and/or C<sub>8</sub> hydrocarbons, and is either:
(1) A petroleum distillate coming straight from an atmospheric distillation unit without being cracked or reformed, or
(2) A condensate coming directly from an oil/gas recovery operation.
(b) *API gravity.* 72° minimum, 85° maximum.
(c) *Reid vapor pressure (PSI).* 15 maximum.
(d) *Sulfur.* 120 ppm maximum.
(e) *Benzene.* 1.1 percent by volume maximum.
(f) *Distillation ( °F):*
(1) *10 percent.* 97 minimum, 158 maximum.
(2) *50 percent.* 250 maximum.
(3) *Final boiling point.* 437 maximum.
[T.D. TTB-140, 81 FR 59462, Aug. 30, 2016]