Violation codes / 393.207A
49 CFR 393 · Parts and accessories393.207A
Axle positioning parts defective/missing
What the rule actually says
This violation cites 49 CFR 393.207, suspension systems. The regulation reads:
(a) Axles. No axle positioning part shall be cracked, broken, loose or missing. All axles must be in proper alignment.
(b) Adjustable axles. Adjustable axle assemblies shall not have locking pins missing or disengaged.
(c) Leaf springs. No leaf spring shall be cracked, broken, or missing nor shifted out of position.
(d) Coil springs. No coil spring shall be cracked or broken.
(e) Torsion bar. No torsion bar or torsion bar suspension shall be cracked or broken.
(f) Air suspensions. The air pressure regulator valve shall not allow air into the suspension system until at least 55 psi is in the braking system. The vehicle…
The section continues.
49 CFR 393.207, Suspension systems. 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.
How often this comes up
This violation was recorded 30,643 times across the roadside inspections in the FMCSA file, making it the 108th 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
- 393.9 Inoperable Required Lamp
- 393.47E Brake Out of Adjustment - Roto, Clamp (Short…
- 393.75A3-TAOL Tires - All others, leaking or inflation les…
- 393.78 Wipers - Inoperative / missing / damaged wip…
- 393.9TS Inoperative turn signal
- 393.9A-LIL Lighting - Identification lamp(s) inoperativ…
- 393.75A3 Tire-flat and/or audible air leak
- 393.95A No/discharged/unsecured fire extinguisher
- 393.95F Emergency Equipment - Stopped vehicle warnin…
- 393.60C Windshield - Damaged or Discolored
- 393.55E-B Air Brake - ABS malfunction lamp defective o…
- 393.45B2UV Brake Hose or Tubing Chafing and/or Kinking …
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.