WALNUT
Roadside inspection site in California • 620 inspections on record
About This Inspection Site
WALNUT 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 620 recorded inspections from Jan 1, 2020 to Mar 27, 2026.
A total of 253 unique carriers have been inspected at this site. The average number of violations per inspection is 0.7. The out-of-service rate is 8.7%, 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 52 citations, followed by Operating a CMV while ill or fatigued (36 citations). A total of 99 distinct violation codes have been cited at this location.
Inspection Level Breakdown
620 inspections by CVSA level
Top Violations
99 violation codes cited at this site (page 1 of 2)
| # | Code | Description | BASIC Category | Citations | OOS | OOS % |
|---|---|---|---|---|---|---|
| 1 | 392.2 | Operating a CMV while ill or fatigued | Unsafe Driving | 52 | 13 | 25.0% |
| 2 | 392.2-SLLEQP | Operating a CMV while ill or fatigued | Unsafe Driving | 36 | 1 | 2.8% |
| 3 | 393.9(a) | Inoperable required lamps | Vehicle Maintenance | 28 | 4 | 14.3% |
| 4 | 392.2-SLLSR | Operating a CMV while ill or fatigued | Unsafe Driving | 21 | 0 | — |
| 5 | 396.3(a)(1) | Inspection/repair/maintenance - general | Vehicle Maintenance | 15 | 1 | 6.7% |
| 6 | 392.2-SLLSOA | Operating a CMV while ill or fatigued | Unsafe Driving | 12 | 2 | 16.7% |
| 7 | 393.11 | Lighting devices/reflectors | Vehicle Maintenance | 9 | 0 | — |
| 8 | 393.9A-LFTSI | Inoperable required lamps | Vehicle Maintenance | 9 | 0 | — |
| 9 | 393.75(a)(3) | Tire-flat and/or audible air leak | Vehicle Maintenance | 8 | 8 | 100.0% |
| 10 | 393.75(c) | Tire tread depth insufficient (other axles) | Vehicle Maintenance | 8 | 1 | 12.5% |
| 11 | 393.75C-TAOTD-LT2/32 | Tire tread depth insufficient (other axles) | Vehicle Maintenance | 7 | 0 | — |
| 12 | 393.9A-LCL | Inoperable required lamps | Vehicle Maintenance | 7 | 0 | — |
| 13 | 392.2-SLLDL | Operating a CMV while ill or fatigued | Unsafe Driving | 7 | 0 | — |
| 14 | 392.2-SLLMF | Operating a CMV while ill or fatigued | Unsafe Driving | 7 | 0 | — |
| 15 | 393.9A-LIL | Inoperable required lamps | Vehicle Maintenance | 6 | 0 | — |
| 16 | 393.60C | Glazing/window obstructions | Vehicle Maintenance | 6 | 0 | — |
| 17 | 393.11A1-CSLRR | Lighting devices/reflectors | Vehicle Maintenance | 6 | 0 | — |
| 18 | 393.9A-LBL | Inoperable required lamps | Vehicle Maintenance | 6 | 0 | — |
| 19 | 393.95(f) | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | 5 | 0 | — |
| 20 | 393.47(e) | Slack adjuster defective | Vehicle Maintenance | 5 | 0 | — |
| 21 | 390.3E3-MC | 390.3E3-MC | General/Admin | 5 | 0 | — |
| 22 | 393.45B2-B-AIR | Brake tubing/hoses inadequate | Vehicle Maintenance | 5 | 1 | 20.0% |
| 23 | 393.9A-LSML | Inoperable required lamps | Vehicle Maintenance | 4 | 0 | — |
| 24 | 396.9(d)(2) | Failure to correct defects noted on previous inspection report | Vehicle Maintenance | 4 | 0 | — |
| 25 | 392.2-SLL | Operating a CMV while ill or fatigued | Unsafe Driving | 4 | 0 | — |
| 26 | 396.5(b) | Fuel system leak | Vehicle Maintenance | 4 | 0 | — |
| 27 | 393.45(b)(2) | Brake tubing/hoses inadequate | Vehicle Maintenance | 3 | 0 | — |
| 28 | 393.55E-B | Coupling device/towing methods defective | Vehicle Maintenance | 3 | 0 | — |
| 29 | 393.45D-BAAL | Brake tubing/hoses inadequate | Vehicle Maintenance | 3 | 1 | 33.3% |
| 30 | 393.60(c) | Glazing/window obstructions | Vehicle Maintenance | 3 | 0 | — |
| 31 | 393.9A-LLPL | Inoperable required lamps | Vehicle Maintenance | 3 | 0 | — |
| 32 | 393.47E | Slack adjuster defective | Vehicle Maintenance | 3 | 0 | — |
| 33 | 393.81-H | Horn inoperable | Vehicle Maintenance | 3 | 0 | — |
| 34 | 393.95F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | 3 | 0 | — |
| 35 | 393.43 | Brake - relay emergency valve | Vehicle Maintenance | 3 | 0 | — |
| 36 | 393.75A3-TAOLTIS | Tires - All others leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS | Vehicle Maintenance | 3 | 2 | 66.7% |
| 37 | 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 | 2 | 2 | 100.0% |
| 38 | 391.11B2-Q | Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) as per FMCSA Enforcement Guidance Memo MC-SEE-2025-0001. Driver failed the I | Driver Fitness | 2 | 2 | 100.0% |
| 39 | 383.23A2-LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | 2 | 2 | 100.0% |
| 40 | 393.79 | Defroster/Defogger - Inoperative or defective | Vehicle Maintenance | 2 | 0 | — |
| 41 | 393.9A-HLLH | Inoperable required lamps | Vehicle Maintenance | 2 | 0 | — |
| 42 | 393.45(d) | Brake tubing/hoses inadequate | Vehicle Maintenance | 2 | 0 | — |
| 43 | 393.9A-LTSI | Inoperable required lamps | Vehicle Maintenance | 2 | 2 | 100.0% |
| 44 | 393.55(d)(1) | Coupling device/towing methods defective | Vehicle Maintenance | 2 | 0 | — |
| 45 | 393.201(d) | Frame accessories improperly attached | Vehicle Maintenance | 2 | 0 | — |
| 46 | 393.11A1-LCL | Lighting devices/reflectors | Vehicle Maintenance | 2 | 0 | — |
| 47 | 376.11(d)(1) | 376.11(d)(1) | Unknown | 2 | 0 | — |
| 48 | 393.45D-B | Brake tubing/hoses inadequate | Vehicle Maintenance | 2 | 0 | — |
| 49 | 393.75(b) | Tire tread depth insufficient (steer) | Vehicle Maintenance | 2 | 0 | — |
| 50 | 393.9A-LSLIWR | Inoperable required lamps | Vehicle Maintenance | 2 | 2 | 100.0% |
Top Carriers Inspected
20 most frequently inspected carriers at this site
| # | Carrier | USDOT | State | Inspections |
|---|---|---|---|---|
| 1 | WALNUT VALLEY UNIFIED SCHOOL DISTRICT | 2807951 | CA | 123 |
| 2 | HD SUPPLY INC | 88111 | GA | 30 |
| 3 | BRILLIANT TRUCKING INC | 3074333 | CA | 18 |
| 4 | THE CHEFS' WAREHOUSE WEST COAST LLC | 1398282 | CA | 17 |
| 5 | COFREIGHT INC | 2627267 | IN | 13 |
| 6 | FEDERAL EXPRESS CORPORATION | 86876 | TN | 12 |
| 7 | KELLY SPICERS INC | 198761 | CA | 11 |
| 8 | THE MARTIN-BROWER COMPANY LLC | 148192 | IL | 11 |
| 9 | JP EXPRESS GROUP | 3360515 | CA | 10 |
| 10 | SPRING ADULT DAY HEALTH CARE, INC. | 2688320 | CA | 9 |
| 11 | TCI ENVIRONMENTAL SERVICES INC | 3370496 | CA | 9 |
| 12 | UNITED PARCEL SERVICE INC | 21800 | GA | 8 |
| 13 | VALLEY VISTA SERVICES INC | 2678625 | CA | 6 |
| 14 | BRILLIANT INTERNATIONAL LLC | 3034096 | CA | 6 |
| 15 | SHANG YUN BUSINESS INC | 3813977 | CA | 6 |
| 16 | TY TRANSPORTATION INC | 3193853 | CA | 6 |
| 17 | ONG PICKUP AND DELIVERY SERVICES INC | 758526 | CA | 5 |
| 18 | IMPERFECT FOODS INC | 3132166 | MD | 5 |
| 19 | QC WEST LLC | 2064293 | FL | 5 |
| 20 | VIGOROUS TRANSPORTATION INC | 3373091 | CA | 4 |
Recent Inspections
620 inspections at this site (page 1 of 25)