49 CFR § 566.4 - Definitions.

---
identifier: "/us/cfr/t49/s566.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 566.4 - Definitions."
title_number: 49
title_name: "Transportation"
section_number: "566.4"
section_name: "Definitions."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "566"
part_name: "MANUFACTURER IDENTIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "National Traffic and Motor Vehicle Safety Act (49 U.S.C. 30114(b), 30166) and Sec. 24405(a) of the Fixing America's Surface Transportation Act (Pub. L. 114-94); delegation of authority at 49 CFR 1.95."
cfr_part: "566"
---


# 566.4 Definitions.

All terms defined in the Act and the rules and standards issued under its authority are used as defined therein. Specifically, *incomplete vehicle, intermediate manufacturer,* and *final-stage manufacturer* are used as defined in Part 568—Vehicles Manufactured in Two or More Stages.

(Authority: 15 U.S.C. 1392, 1397)

[37 FR 1364, Jan. 28, 1972]