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FMCSA SMS Appendix A + MCMIS catalog · 144 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.
144 results
Missing code? Submit it →Inspection, repair and maintenance of parts and accessories
A sliding suspension attachment member (undercarriage body rail) is cracked completely through along a 4 foot (1.2 m) continuous length.
A sliding suspension member’s (undercarriage body rail) attachment welds are cracked completely through along a 4 foot (1.2 m) continuous length of the body rail.
The sliding suspension attachment member (undercarriage body rail) on either side exhibits a crack of any length in more than 50% of its attachment welds.
The sliding suspension attachment member (undercarriage body rail) on either side exhibits 50% or more of attachment fasteners missing.
The sliding suspension attachment member (undercarriage body rail) attachment fasteners are missing along a 4 foot (1.2 m) continuous length of the body rail.
More than 25% of the locking pin holes in use have torn or split material from the hole in use to an adjacent hole or from the hole in use to the edge of the rail.
Any locking pin hole has torn or split material from the hole in use to an adjacent hole or from the hole in use to the edge of the rail.
More than 25% of the locking pin holes measure more than 1 inch (25.4 mm) larger than its original size.
Any locking pin hole in use measures more than 1 inch (25.4 mm) larger than its original size.
More than 25% of the slider-guide/hold-down brackets are missing or disengaged.
Any of the slider-guide/hold-down brackets are missing or disengaged.
Air Brake - Any leak from an air tank reservoir.
Air Brake - Any leak from a brake valve.
Brake - Defective Air Reservoir
Wheels - Welded Repair on wheel other than Disc-to-Rim attachment
Air Brake - Air compressor mounting bolts loose.
Air Brake - Air compressor mounting brackets/braces/adapters cracked/broken.
Air Brake - Air compressor mounting brackets have missing or loose mounting bolts.
Air Brake - Air compressor cracked/broken/loose pulley.
Air Brake - Air compressor drive belt pending or probable failure.
Brake - Audible air leak from a brake chamber
Air Brake - Fails air loss rate test.
Air Brake - Leaking air tank.
Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch
| Code ↑ | Description ↕ | Pts ↕ | OOS | ||
|---|---|---|---|---|---|
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories Vehicle Maintenance | Vehicle Maintenance | 2 | Non-OOS | View → |
| 396.3A1-AABRC | A sliding suspension attachment member (undercarriage body rail) is cracked completely through along a 4 foot (1.2 m) continuous length. Vehicle Maintenance | Vehicle Maintenance | 7 | Non-OOS | View → |
| 396.3A1-AABRCCT | A sliding suspension member’s (undercarriage body rail) attachment welds are cracked completely through along a 4 foot (1.2 m) continuous length of the body rail. Vehicle Maintenance | Vehicle Maintenance | 7 | Non-OOS | View → |
| 396.3A1-AABRCW | The sliding suspension attachment member (undercarriage body rail) on either side exhibits a crack of any length in more than 50% of its attachment welds. Vehicle Maintenance | Vehicle Maintenance | 7 | Non-OOS | View → |
| 396.3A1-AABRF50 | The sliding suspension attachment member (undercarriage body rail) on either side exhibits 50% or more of attachment fasteners missing. Vehicle Maintenance | Vehicle Maintenance | 7 | Non-OOS | View → |
| 396.3A1-AABRFM | The sliding suspension attachment member (undercarriage body rail) attachment fasteners are missing along a 4 foot (1.2 m) continuous length of the body rail. Vehicle Maintenance | Vehicle Maintenance | 7 | Non-OOS | View → |
| 396.3A1-AALPHTS | More than 25% of the locking pin holes in use have torn or split material from the hole in use to an adjacent hole or from the hole in use to the edge of the rail. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-AALPHTS-L6 | Any locking pin hole has torn or split material from the hole in use to an adjacent hole or from the hole in use to the edge of the rail. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-AALPHW | More than 25% of the locking pin holes measure more than 1 inch (25.4 mm) larger than its original size. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-AALPHW-L6 | Any locking pin hole in use measures more than 1 inch (25.4 mm) larger than its original size. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-AASGMD | More than 25% of the slider-guide/hold-down brackets are missing or disengaged. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-AASGMD-L6 | Any of the slider-guide/hold-down brackets are missing or disengaged. Vehicle Maintenance | Vehicle Maintenance | 3 | Non-OOS | View → |
| 396.3A1-ALATR | Air Brake - Any leak from an air tank reservoir. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-ALBV | Air Brake - Any leak from a brake valve. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-AR | Brake - Defective Air Reservoir Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-AWW | Wheels - Welded Repair on wheel other than Disc-to-Rim attachment Vehicle Maintenance | Vehicle Maintenance | 2 | Non-OOS | View → |
| 396.3A1-BACL | Air Brake - Air compressor mounting bolts loose. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BACM | Air Brake - Air compressor mounting brackets/braces/adapters cracked/broken. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BACM-L6 | Air Brake - Air compressor mounting brackets have missing or loose mounting bolts. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BACP | Air Brake - Air compressor cracked/broken/loose pulley. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BACPPF-L6 | Air Brake - Air compressor drive belt pending or probable failure. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BALAC | Brake - Audible air leak from a brake chamber Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BALR | Air Brake - Fails air loss rate test. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BAR | Air Brake - Leaking air tank. Vehicle Maintenance | Vehicle Maintenance | 4 | Non-OOS | View → |
| 396.3A1-BARS | Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch 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