40 CFR § 86.502-78 - Definitions.

---
identifier: "/us/cfr/t40/s86.502-78"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 86.502-78 - Definitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "86.502-78"
section_name: "Definitions."
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: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401-7671q."
cfr_part: "86"
---


# 86.502-78 Definitions.

(a) The definitions in § 86.402-78 apply to this subpart.

(b) [Reserved]