haulrecordFMCSA data

Violation codes / 393.45B2

49 CFR 393 · Parts and accessories

393.45B2

What it means

Brake hose or tubing chafing and/or kinking

What the rule actually says

This violation cites 49 CFR 393.45, brake tubing and hoses; hose assemblies and end fittings. The regulation reads:

(a) General construction requirements for tubing and hoses, assemblies, and end fittings. All brake tubing and hoses, brake hose assemblies, and brake hose end fittings must meet the applicable requirements of FMVSS No. 106 (49 CFR 571.106).

(b) Brake tubing and hose installation. Brake tubing and hose must—

(1) Be long and flexible enough to accommodate without damage all normal motions of the parts to which it is attached;

(2) Be secured against chaffing, kinking, or other mechanical damage; and

(3) Be installed in a manner that prevents it from contacting the vehicle's exhaust system or any other source of high te…

The section continues.

49 CFR 393.45, Brake tubing and hoses; hose assemblies and end fittings. Read the full section on eCFR

Quoted verbatim from the Electronic Code of Federal Regulations. Nothing here is a paraphrase, and nothing here is legal advice on a citation.

Times recorded30,7657% as often as 393.9, the most cited
How common105thof the 200 most cited codes, out of 2,372 that exist
Regulation393.45Parts and accessories

How often this comes up

This violation was recorded 30,765 times across the roadside inspections in the FMCSA file, making it the 105th most frequently cited code. Whether a given instance puts a vehicle or driver out of service is decided at the roadside by the inspector, not by the code itself, so the same violation can end a trip or simply be noted.

It sits under 49 CFR Part 393, which covers parts and accessories. To see it in context, look up a carrier and read its inspection history: the same code appearing repeatedly is a different signal from a single occurrence.

Look up a carrier's inspection record

Other parts and accessories violations

Counts are from the FMCSA Inspections and Violations file via data.transportation.gov. This describes how the violation is recorded, and is not legal advice on a citation.