40 CFR § 86.531-78 - Vehicle preparation.

---
identifier: "/us/cfr/t40/s86.531-78"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 86.531-78 - Vehicle preparation."
title_number: 40
title_name: "Protection of Environment"
section_number: "86.531-78"
section_name: "Vehicle preparation."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "86"
part_name: "CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES"
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. 7401-7671q."
cfr_part: "86"
---


# 86.531-78 Vehicle preparation.

(a) The manufacturer shall provide additional fittings and adapters, as required by the Administrator, to accommodate a fuel drain at the lowest point possible in the tank(s) as installed on the vehicle, and to provide for exhaust sample collection.

(b) Connect the motorcycle's exhaust system to the analyzer for all exhaust emission measurements. Seal all known leaks in the exhaust system. Make sure any remaining leaks do not affect the demonstration that the motorcycle complies with standards in subpart E of this part.

[86 FR 34367, June 29, 2021]