40 CFR § 80.8 - Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels.

---
identifier: "/us/cfr/t40/s80.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 80.8 - Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels."
title_number: 40
title_name: "Protection of Environment"
section_number: "80.8"
section_name: "Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "80"
part_name: "REGULATION OF FUELS AND FUEL ADDITIVES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7414, 7521, 7542, 7545, and 7601(a)."
regulatory_source: "38 FR 1255, Jan. 10, 1973, unless otherwise noted."
cfr_part: "80"
---


# 80.8 Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels.

(a) *Manual sampling.* Manual sampling of tanks and pipelines shall be performed according to the applicable procedures specified in ASTM D4057 (incorporated by reference, see § 80.12).

(b) *Automatic sampling.* Automatic sampling of petroleum products in pipelines shall be performed according to the applicable procedures specified in ASTM D4177 (incorporated by reference, see § 80.12).

(c) *Sampling and sample handling for volatility measurement.* Samples to be analyzed for Reid Vapor Pressure (RVP) shall be collected and handled according to the applicable procedures specified in ASTM D5842 (incorporated by reference, see § 80.12).

(d) *Sample compositing.* Composite samples shall be prepared using the applicable procedures specified in ASTM D5854 (incorporated by reference, see § 80.12).

[88 FR 44563, July 12, 2023]