ADAN A SIERRA VILLATORO
USDOT 3223988 • DBA: SIERRA'S TRUCKING • 24177 TROPICAL DR, MADERA, CA, 93638-9623
ACTIVE
Authority:None on file
Insurance:None on file
BOC-3:Not on file
Safety Rating:Not rated
MCS-150:Never updated
OOS Orders:None
Overview
Company profile from FMCSA Census File
USDOT
3,223,988
Status
ACTIVE
Operation
Intrastate (Non-Hazmat)
State
Phone
5594163902
Email
Power Units (MCS-150)
2
Drivers (MCS-150)
1
MCS-150 Mileage
50,000
Physical Address
24177 TROPICAL DR, MADERA, CA, 93638-9623
Contact
Phone: 5594163902
Email: [email protected]
Risk Signals2 flagged
MEDIUM
Elevated vehicle OOS rate: 37.5%
National average is 23.4%. This carrier's vehicle OOS rate is 14.1 percentage points above average.
MEDIUM
Elevated driver OOS rate: 12.5%
National average is 6.7%. This carrier's driver OOS rate is 5.8 percentage points above average.
Signals are auto-detected from FMCSA public records. This is not a regulatory determination.
Authority & Insurance
Operating authority, insurance filings, and BOC-3 status
Active Authority
0
Revoked / Inactive
0
Authority Types
0
Insurance Policies
None on file
BOC-3 Filing
Not on file
Operating Authority
fmcsa-authhistApr 5, 2026
No records found
No insurance filings found for this carrier in FMCSA records.
Safety & Inspections
SMS BASIC scores, inspection history, and out-of-service rates
SMS BASIC Scores
Driver Fitness
0%
Drugs / Alcohol
0%
Hours of Service
2%
Unsafe Driving
4%
Vehicle Maintenance
0%
Higher percentile = worse safety performance relative to peers. Scores at or above 75% trigger FMCSA alerts.
Inspections
8
Violations
16
4 OOS
Vehicle OOS %
37.5%
Above nat'l avg (23.4%)
Driver OOS %
12.5%
Above nat'l avg (6.7%)
Power Units (MCS-150)
2
Drivers (MCS-150)
1
Crash Records
0
Inspection Activity (24 months)
Monthly inspection counts with OOS months highlighted. Hover bars for details.
May
Jun
Jul
1
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
1
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Clean monthMonth with OOSBased on latest 8 of 8 inspection records
Inspection Activity Map
2 states • 8 inspections
None Low Medium High🚛 Home base
Violation Summary (16 violations from 8 inspections)
fmcsa-inspection-file
| Code | Description | # Violations | # OOS | Severity Wt | BASIC |
|---|---|---|---|---|---|
| FMCSR:396.3(a)(1) | Inspection/repair/maintenance - general | 4 | 0 | 5 | Vehicle Maintenance |
| FMCSR:395.8(a)(1) | Not using the appropriate method to record hours of service | 1 | 1 | — | Hours Of Service |
| FMCSR:392.2 | Operating a CMV while ill or fatigued | 1 | 0 | 8 | Unsafe Driving |
| FMCSR:392.9a(a)(2) | Transporting passengers without authority | 1 | 1 | 8 | General/Admin |
| FMCSR:393.47(e) | Slack adjuster defective | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.53(b) | Steering system components worn | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.47(a) | Brake chamber - cracked/broken | 1 | 1 | 8 | Vehicle Maintenance |
| FMCSR:393.45(b)(2) | Brake tubing/hoses inadequate | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.43(a) | Brake - relay emergency valve | 1 | 1 | 7 | Vehicle Maintenance |
| FMCSR:393.79 | Defroster/Defogger - Inoperative or defective | 1 | 0 | — | Vehicle Maintenance |
| FMCSR:393.95(a) | Emergency equipment - fire extinguisher missing/defective | 1 | 0 | 5 | Vehicle Maintenance |
| FMCSR:393.24(a) | Lighting/marking on projecting loads | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:396.5(b) | Fuel system leak | 1 | 0 | 7 | Vehicle Maintenance |
Peer Context
This carrier vs national averages. Lower is better for all metrics.
Vehicle OOS Rate
37.5%vs nat'l 23.4%
+14.1 pts above avg
Driver OOS Rate
12.5%vs nat'l 6.7%
+5.8 pts above avg
Violations / Inspection
2.00vs nat'l 1.80
+0.20 above avg
National averages: vehicle OOS 23.4%, driver OOS 6.7%, violations per inspection ~1.8. Based on FMCSA MCSAP program data.
Inspection History (8 inspections)
fmcsa-inspectionsApr 5, 2026
| Date | Report # | Station | State | Level | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| Aug 14, 2025 | 85524925 | KEENE | CA | Level 2 | FRHT TRUCK TRACTOR | 0 | — | No |
| Aug 12, 2024 | 82417925 | BUCKEYE AZ | AZ | Level 3 | INTERNATIO TRUCK TRACTOR | 3 | 395.8(a)(1), 392.2, 392.9a(a)(2) | Yes |
| Aug 21, 2023 | 79478126 | CASTAIC IF | CA | Level 1 | WANC SEMI-TRAILER | 2 | 393.47(e), 393.53(b) | No |
| Aug 16, 2023 | 79487702 | 18463 RD 23, MADERA | CA | Level 5 | FRHT TRUCK TRACTOR | 0 | — | No |
| Aug 16, 2023 | 79487701 | 18463 RD 23, MADERA | CA | Level 5 | FRHT TRUCK TRACTOR | 0 | — | No |
| Apr 13, 2023 | 78684317 | 18463 RD 23, MADERA | CA | Level 5 | — | 2 | 396.3(a)(1) | No |
| Apr 13, 2023 | 78684430 | 18463 RD 23, MADERA | CA | Level 5 | — | 2 | 393.47(a), 393.45(b)(2) | Yes |
| Apr 13, 2023 | 78684431 | 18463 RD 23, MADERA | CA | Level 5 | — | 7 | 396.3(a)(1), 393.43(a), 393.79 | Yes |
Inspection analytics
Monthly cadence, frequent stations, and violation mix
Inspections per month (24 mo)
2 total · 50.0% OOS
2024-082025-08
InspectionsOOS
Most frequent inspection stations
Violations by BASIC category
Related Records
Related records
StateAll entities in California
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CityEntities in MADERA, CA
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Crashes0 crash records
FMCSA Crash File
Inspections8 inspection records
Full inspection history
Station18463 RD 23, MADERA
5 inspections at this station
StationKEENE
1 inspection at this station
StationBUCKEYE AZ
1 inspection at this station
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Data sources & freshness
FMCSA Company Census File
Generated from 24-hour old database. Contact info and fleet counts may lag.
Updated 1 weeks ago
FMCSA Authority History
Updated 1 weeks ago
FMCSA Insurance Filings
Updated 1 weeks ago
FMCSA Vehicle Inspection File
Updated 1 weeks ago
Refresh dataLast updated: Apr 5, 2026