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Top 10 Vehicle OOS Violations
(2009^†)

Vehicle Violations

All Domiciles

U.S.

Mexico

Canada

Vehicle Inspections

1,713,960

1,529,521

148,815

35,624

Vehicle Inspections w/ OOS Violations

370,859

340,193

25,798

4,868

Vehicle OOS Rate*

21.6%

22.2%

17.3%

13.7%

Vehicle OOS Violations

544,515

506,665

31,933

5,917

393.9TS - INOPERATIVE TURN SIGNAL RIGHT

5.9%

6.3%

0.9%

5.4%

396.3A1 - INSPECTION/REPAIR AND MAINTENANCE

5.4%

5.5%

4.2%

3.5%

393.25F - STOP LAMP VIOLATIONS

5.2%

5.7%

5.3%

393.48A - INOPERATIVE/DEFECTIVE BRAKES

5.2%

4.6%

6.0%

393.75A - FLAT TIRE OR FABRIC EXPOSED

4.6%

4.4%

7.8%

6.8%

393.45 - BRAKE TUBING AID HOSE ADEQUACY

4.5%

4.6%

2.1%

10.0%

393.9A - INOPERABLE REQUIRED LAMP

3.9%

4.2%

0.2%

1.4%

393.75A3 - TIRE-FLAT AND/OR AUDIBLE AIR LEAK

3.8%

3.6%

8.3%

2.4%

393.47E - CLAMP/ROTO TYPE BRAKE(S) OUT-OF-ADJUSTMENT

3.3%

2.8%

11.8%

4.5%

393.43 - NO/IMPROPER BREAKAWAY OR EMERGENCY BRAKING

2.9%

2.6%

8.4%

0.4%

Data Source: FMCSA Motor Carrier Management Information System (MCMIS) September 25, 2009 snapshot.

*Vehicle OOS rate is based on inspection levels I, II, V and VI.

^†2009 data, as of September 25, 2009