FONTANA

Roadside inspection site in California • 1,040 inspections on record

OOS Rate: 10.8%
Total Inspections
1,040
OOS Rate
10.8%
OOS Inspections
112
Unique Carriers
567
HazMat Inspections
0
Avg Violations
1.0
Name
FONTANA
State
California (CA)
Facility Type
Total Inspections
1,040
OOS Rate
10.8%
Active Since
Jan 1, 2020
Latest Inspection
Mar 27, 2026

About This Inspection Site

FONTANA is a roadside inspection location in California where FMCSA-certified inspectors conduct safety inspections of commercial motor vehicles under the Motor Carrier Safety Assistance Program (MCSAP). This site has conducted 1,040 recorded inspections from Jan 1, 2020 to Mar 27, 2026.

A total of 567 unique carriers have been inspected at this site. The average number of violations per inspection is 1.0. The out-of-service rate is 10.8%, meaning a moderate number of inspected vehicles or drivers are placed out of service for safety deficiencies.

Inspections follow CVSA (Commercial Vehicle Safety Alliance) North American Standard procedures and may include weight checks, credential verification, mechanical inspection, hours-of-service compliance review, and hazardous materials documentation checks. Vehicles or drivers that fail critical safety criteria are placed out of service until deficiencies are corrected.

The most frequently cited violation at this site is Operating a CMV while ill or fatigued (Unsafe Driving) with 168 citations, followed by Operating a CMV while ill or fatigued (59 citations). A total of 100 distinct violation codes have been cited at this location.

Inspection Level Breakdown

1,040 inspections by CVSA level

Top Violations

100 violation codes cited at this site (page 1 of 2)

#CodeDescriptionBASIC CategoryCitationsOOSOOS %
1392.2Operating a CMV while ill or fatiguedUnsafe Driving16863.6%
2392.2-SLLLROperating a CMV while ill or fatiguedUnsafe Driving590
3392.2-SLLEQPOperating a CMV while ill or fatiguedUnsafe Driving570
4392.2-SLLSROperating a CMV while ill or fatiguedUnsafe Driving490
5392.2-SLLSOAOperating a CMV while ill or fatiguedUnsafe Driving300
6393.9(a)Inoperable required lampsVehicle Maintenance30310.0%
7393.45(b)(2)Brake tubing/hoses inadequateVehicle Maintenance26519.2%
8396.3(a)(1)Inspection/repair/maintenance - generalVehicle Maintenance20630.0%
9393.75(a)(3)Tire-flat and/or audible air leakVehicle Maintenance201995.0%
10393.75A3-TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATISVehicle Maintenance1515100.0%
11392.2-SLLS2Speeding 6-10 mph over limitUnsafe Driving130
12393.9A-LILInoperable required lampsVehicle Maintenance130
13392.2-SLLSIVOperating a CMV while ill or fatiguedUnsafe Driving130
14393.95FEmergency Equipment - Stopped vehicle warning devices missing or improperVehicle Maintenance130
15392.2-SLLOperating a CMV while ill or fatiguedUnsafe Driving130
16392.2-SLLTLOperating a CMV while ill or fatiguedUnsafe Driving120
17393.45B2-B-AIRBrake tubing/hoses inadequateVehicle Maintenance120
18390.21T(b)390.21T(b)General/Admin100
19393.95A1Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.Vehicle Maintenance100
20383.23A2-LCDLNLicense (CDL) - Operate a CMV and does not possess a valid CDLDriver Fitness9888.9%
21392.2-SLLS3Speeding 11-14 mph over limitUnsafe Driving90
22392.2-SLLS4Speeding 15+ mph over limitUnsafe Driving90
23390.21TB2-DOT390.21TB2-DOTGeneral/Admin90
24390.21T(a)390.21T(a)General/Admin90
25393.47ESlack adjuster defectiveVehicle Maintenance80
26393.9A-LTSIInoperable required lampsVehicle Maintenance8675.0%
27393.9A-LHLIInoperable required lampsVehicle Maintenance80
28393.9A-LCLInoperable required lampsVehicle Maintenance80
29393.45B2-BHTDBrake tubing/hoses inadequateVehicle Maintenance7457.1%
30393.9A-LFTSIInoperable required lampsVehicle Maintenance70
31393.95(a)Emergency equipment - fire extinguisher missing/defectiveVehicle Maintenance70
32393.95A4-EEUSEmergency Equipment - Fire Extinguishers - unsecuredVehicle Maintenance70
33393.47(e)Slack adjuster defectiveVehicle Maintenance70
34393.60CGlazing/window obstructionsVehicle Maintenance70
35393.53(b)Steering system components wornVehicle Maintenance60
36395.8E-HOSPDOOSFalse record of duty statusHours of Service6116.7%
37393.9A-LSLIInoperable required lampsVehicle Maintenance60
38383.23(a)(2)CDL - wrong classDriver Fitness66100.0%
39392.9A2-CCargo - Vehicle components or dunnage not securedUnsafe Driving5480.0%
40391.11B4Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate orDriver Fitness55100.0%
41393.53B-BSteering system components wornVehicle Maintenance50
42393.75(a)(1)Tire-ply or belt material exposedVehicle Maintenance5480.0%
43393.75C-TAOTD-LT1/32Tire tread depth insufficient (other axles)Vehicle Maintenance5240.0%
44393.43Brake - relay emergency valveVehicle Maintenance50
45392.2-SLLCPOperating a CMV while ill or fatiguedUnsafe Driving40
46393.60(d)Glazing/window obstructionsVehicle Maintenance40
47396.3A1-BOSBRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combinationVehicle Maintenance44100.0%
48392.2-SLLDLOperating a CMV while ill or fatiguedUnsafe Driving4125.0%
49393.45B2-BBrake tubing/hoses inadequateVehicle Maintenance40
50392.80(a)Using a hand-held mobile telephoneUnsafe Driving40
Showing 150 of 100

Top Carriers Inspected

20 most frequently inspected carriers at this site

Recent Inspections

1,040 inspections at this site (page 1 of 42)

Data sources & freshness

FMCSA Vehicle Inspection File
Updated 1 weeks ago