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FMCSA SMS Appendix A + MCMIS catalog · 25 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.
25 results
Missing code? Submit it →Flat tire or fabric exposed
Tire-ply or belt material exposed
Tire-tread and/or sidewall separation
Tire-flat and/or audible air leak
Tire-cut exposing ply and/or belt material
Tires - All others, bias ply has more than one ply exposed in the tread area or damaged plies in the sidewall.
Tires - All others, radial ply has more than one ply exposed in the tread area or damaged cord in the sidewall.
Tires - Bias ply - Has damaged plies evident in the sidewall up to 2 square inches.
Tires - Bias ply - Has more than one ply exposed in the tread area exceeding 2 square inches.
Tires - Exposed ply or belt material in tread or sidewall area.
Tires - Front, belt material/casing ply showing in tread area.
Tires - Front, sidewall is cut/worn/damaged exposing ply cord.
Tires - Has damaged plies evident in the sidewall up to 2 square inches.
Tires - Has more two or more plies are exposed in the tread area exceeding 2 square inches.
Tires - All others, bump or bulge related to tread or sidewall separation.
Tires - Any tire with observable bumps, bulge or knots.
Tires - All others, 75% of the tread width is loose/missing in excess of 12 inches of circumference.
Tires - Front, bump or bulge related to tread or sidewall separation.
Tires - Front, Any tire with observable bumps, bulge or knots.
Tires - All others, leaking with inflation more than 50% of the maximum inflation pressure on tire equipped with ATIS
Tires - All others - Leaking in sidewall area on tire equipped with ATIS
Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS
Tires - All others, leaking and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS
Tires - Front, leaking or inflation less than 50% of the maximum inflation pressure.
Tires - Has a cut to the extent that the ply or belt material is exposed.
| Code ↑ | Description ↕ | Pts ↕ | OOS | ||
|---|---|---|---|---|---|
| 393.75(a) | Flat tire or fabric exposed Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75(a)(1) | Tire-ply or belt material exposed Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75(a)(2) | Tire-tread and/or sidewall separation Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75(a)(3) | Tire-flat and/or audible air leak Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75(a)(4) | Tire-cut exposing ply and/or belt material Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TAOBETA | Tires - All others, bias ply has more than one ply exposed in the tread area or damaged plies in the sidewall. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TAORETA | Tires - All others, radial ply has more than one ply exposed in the tread area or damaged cord in the sidewall. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TBSP | Tires - Bias ply - Has damaged plies evident in the sidewall up to 2 square inches. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TBTP | Tires - Bias ply - Has more than one ply exposed in the tread area exceeding 2 square inches. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TEPBM | Tires - Exposed ply or belt material in tread or sidewall area. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TFBMF | Tires - Front, belt material/casing ply showing in tread area. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TFSMF | Tires - Front, sidewall is cut/worn/damaged exposing ply cord. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TRPES | Tires - Has damaged plies evident in the sidewall up to 2 square inches. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A1-TRPET | Tires - Has more two or more plies are exposed in the tread area exceeding 2 square inches. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A2-TAOBB | Tires - All others, bump or bulge related to tread or sidewall separation. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A2-TAOBB-6 | Tires - Any tire with observable bumps, bulge or knots. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A2-TAOTLM | Tires - All others, 75% of the tread width is loose/missing in excess of 12 inches of circumference. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A2-TFBB | Tires - Front, bump or bulge related to tread or sidewall separation. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A2-TFBB-6 | Tires - Front, Any tire with observable bumps, bulge or knots. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A3-ATIS | Tires - All others, leaking with inflation more than 50% of the maximum inflation pressure on tire equipped with ATIS Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A3-TALS | Tires - All others - Leaking in sidewall area on tire equipped with ATIS Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A3-TAOL | Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A3-TAOLTIS | Tires - All others, leaking and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A3-TFL | Tires - Front, leaking or inflation less than 50% of the maximum inflation pressure. Vehicle Maintenance | Vehicle Maintenance | 8 | Non-OOS | View → |
| 393.75A4-PBME | Tires - Has a cut to the extent that the ply or belt material is exposed. Vehicle Maintenance | Vehicle Maintenance | 8 | 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