40 CFR § 1090.1550 - Requirements for gasoline dispensing nozzles used with motor vehicles.

---
identifier: "/us/cfr/t40/s1090.1550"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1090.1550 - Requirements for gasoline dispensing nozzles used with motor vehicles."
title_number: 40
title_name: "Protection of Environment"
section_number: "1090.1550"
section_name: "Requirements for gasoline dispensing nozzles used with motor vehicles."
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: "2026-03-24"
last_updated: "2026-03-24"
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"
---


# 1090.1550 Requirements for gasoline dispensing nozzles used with motor vehicles.

The following requirements apply for any nozzle installation used for dispensing gasoline into motor vehicles:

(a) Nozzles must meet the following hardware specifications:

(1) The outside diameter of the terminal end must not be greater than 21.3 mm.

(2) The terminal end must have a straight section of at least 63 mm.

(3) The retaining spring must terminate at least 76 mm from the terminal end.

(b) The dispensing flow rate must not exceed a maximum value of 10 gallons per minute. The flow rate may be controlled through any means in the pump/dispenser system, as long as it does not exceed the specified maximum value.

[88 FR 4718, Jan. 24, 2023]