49 CFR § 523.4 - Passenger automobile.

---
identifier: "/us/cfr/t49/s523.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 523.4 - Passenger automobile."
title_number: 49
title_name: "Transportation"
section_number: "523.4"
section_name: "Passenger automobile."
chapter_name: "NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "523"
part_name: "VEHICLE CLASSIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 32901; delegation of authority at 49 CFR 1.95."
cfr_part: "523"
---


# 523.4 Passenger automobile.

A passenger automobile is any automobile (other than an automobile capable of off-highway operation) manufactured primarily for use in the transportation of not more than 10 individuals. A medium-duty passenger vehicle that does not meet the criteria for non-passenger motor vehicles in § 523.6 is a passenger automobile.

[89 FR 52945, June 24, 2024]