Search violations
FMCSA SMS Appendix A + MCMIS catalog · 38 codes
Search any FMCSA violation code from the SMS Methodology (Appendix A) by code, keyword, or BASIC category. Every entry shows the CSA severity weight (points), whether the violation is out-of-service (OOS) eligible, and which of the seven BASICs it counts against — including codes that appear on roadside inspections but aren't used in SMS scoring.
38 results
Missing code? Submit it →Brake tubing and hose adequacy
Brake hose or tubing chafing and/or kinking
Brake hose or tubing contacting exhaust system
Brake connections with leaks or constrictions
Brakes - Air brake hose/tubing labeled for other than an air brake system
Air Brake tubing improperly joined or spliced
Hydraulic Brake Hose bulges or swells under pressure
Hydraulic Improperly joined such as a splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube.
Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied.
Air Brake - Improperly joined such as a splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube.
Hydraulic Fluid Lines Restricted, Cracked or Broken
Hydraulic Any Observed Leaking Hydraulic Fluid
Hydraulic Brake - leaking on application
Hydraulic Brake tubing improperly joined or spliced
Air Brake - Hose/tubing damaged or not secured.
Brake - Vacuum hose(s) or line(s) restricted/abraded/chafed through outer cover-to-cord ply crimped/cracked/broken.
Hydraulic Hose Abraded (Chafed)
Air Brake - Hose/tubing damage into the outer reinforcement ply.
Air brake - Hose/tubing damaged or not secured
Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit
Brake Hose or Tubing Chafing and/or Kinking Under Vehicle
Air Brake - Hose/tubing contacting exhaust system.
Air Brake - Missing or inadequate Nonmetallic tubing spring guard
Brakes - Hydraulic brake hose/line labeled for other than a hydraulic brake system
Air Brake - Audible air leak at a proper connection.
| Code ↑ | Description ↕ | Pts ↕ | OOS | ||
|---|---|---|---|---|---|
| 393.45 | Brake tubing and hose adequacy Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45(b)(2) | Brake hose or tubing chafing and/or kinking Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45(b)(3) | Brake hose or tubing contacting exhaust system Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45(d) | Brake connections with leaks or constrictions Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A - AHIL | Brakes - Air brake hose/tubing labeled for other than an air brake system Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-AJS | Air Brake tubing improperly joined or spliced Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BHB | Hydraulic Brake Hose bulges or swells under pressure Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BHIJ | Hydraulic Improperly joined such as a splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BHTBS | Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BHTIJ | Air Brake - Improperly joined such as a splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BLCB | Hydraulic Fluid Lines Restricted, Cracked or Broken Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-BLHF | Hydraulic Any Observed Leaking Hydraulic Fluid Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-HBL | Hydraulic Brake - leaking on application Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45A-HJS | Hydraulic Brake tubing improperly joined or spliced Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2-B-AIR | Air Brake - Hose/tubing damaged or not secured. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2-B-VAC | Brake - Vacuum hose(s) or line(s) restricted/abraded/chafed through outer cover-to-cord ply crimped/cracked/broken. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2-BHHC | Hydraulic Hose Abraded (Chafed) Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2-BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2B | Air brake - Hose/tubing damaged or not secured Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2PC | Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45B3-B | Air Brake - Hose/tubing contacting exhaust system. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45C-BSG | Air Brake - Missing or inadequate Nonmetallic tubing spring guard Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45D - HHIL | Brakes - Hydraulic brake hose/line labeled for other than a hydraulic brake system Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 393.45D-B | Air Brake - Audible air leak at a proper connection. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
Statistics
Most-cited violation codes
Ranked by roadside-inspection citation count across FMCSA public data.
- 393.9
Inoperable Required Lamp
- 392.2RG
State vehicle registration or License Plate violation
- 393.47(e)
Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
- 396.17(c)
Operating a CMV without proof of a periodic inspection
- 396.17C-PI
Operating a CMV without documentation of a periodic inspection.
- 393.95(a)
No/discharged/unsecured fire extinguisher
- 393.9TS
Inoperative turn signal
- 392.2SLLSR
State/Local Laws - State registration/tag violation.
- 393.75(a)(3)
Tire-flat and/or audible air leak
- 393.78
Wipers - Inoperative / missing / damaged wipers.
- 393.95(f)
Emergency Equipment - Stopped vehicle warning devices missing or impr…
- 392.2
Violation of Local Laws - Explain:
- 392.2-SLLS2
State/Local Laws - Speeding 6-10 miles per hour over the speed limit.
- 396.3A1BOS
Brake - Defective brake(s) are equal to or greater than 20% of the se…
- 393.11
No or defective lighting devices or reflective material as required
- 396.3(a)(1)
Inspection, repair and maintenance of parts and accessories
- 393.75A3-TAOL
Tires - All others, leaking or inflation less than 50% of the maximum…
- 393.53(b)
CMV manufactured after 10/19/94 has an automatic airbrake adjustment …
- 393.75(c)
Tire-other tread depth less than 2/32 of inch measured in a major tre…
- 393.60(c)
Windshield - Damaged or Discolored