49 CFR § 392.7 - Equipment, inspection and use.

---
identifier: "/us/cfr/t49/s392.7"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 392.7 - Equipment, inspection and use."
title_number: 49
title_name: "Transportation"
section_number: "392.7"
section_name: "Equipment, inspection and use."
chapter_name: "FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "FEDERAL MOTOR CARRIER SAFETY REGULATIONS"
part_number: "392"
part_name: "DRIVING OF COMMERCIAL MOTOR VEHICLES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 504, 13902, 31136, 31151, 31502; Section 112 of Pub. L. 103-311, 108 Stat. 1673, 1676 (1994), as amended by sec. 32509 of Pub. L. 112-141, 126 Stat. 405-805 (2012); and 49 CFR 1.87."
regulatory_source: "33 FR 19732, Dec. 25, 1968, unless otherwise noted."
cfr_part: "392"
---


# 392.7 Equipment, inspection and use.

(a) No commercial motor vehicle shall be driven unless the driver is satisfied that the following parts and accessories are in good working order, nor shall any driver fail to use or make use of such parts and accessories when and as needed:

Service brakes, including trailer brake connections.

Parking (hand) brake.

Steering mechanism.

Lighting devices and reflectors.

Tires.

Horn.

Windshield wiper or wipers.

Rear-vision mirror or mirrors.

Coupling devices.

Wheels and rims.

Emergency equipment.

(b) Drivers preparing to transport intermodal equipment must make an inspection of the following components, and must be satisfied they are in good working order before the equipment is operated over the road. Drivers who operate the equipment over the road shall be deemed to have confirmed the following components were in good working order when the driver accepted the equipment:

—Service brake components that are readily visible to a driver performing as thorough a visual inspection as possible without physically going under the vehicle, and trailer brake connections

—Lighting devices, lamps, markers, and conspicuity marking material

—Wheels, rims, lugs, tires

—Air line connections, hoses, and couplers

—King pin upper coupling device

—Rails or support frames

—Tie down bolsters

—Locking pins, clevises, clamps, or hooks

—Sliders or sliding frame lock

[33 FR 19732, Dec. 25, 1968, as amended at 60 FR 38746, July 28, 1995; 66 FR 49874, Oct. 1, 2001; 73 FR 76823, Dec. 17, 2008; 74 FR 68708, Dec. 29, 2009; 79 FR 75449, Dec. 18, 2014]