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MOS CONSTRUCTION LLC
San Marcos, TX
CarrierChk vetting signal
Review recommended
Elevated Out-of-Service Rate
70.0% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 98% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
See details ↓
FMCSA status: Active registration · no operating authority · DOT 4041960
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
70.0% OOS · 12 inspections on record
Flags · 1
Elevated Out-of-Service Rate
70.0% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 98% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- No active insurance filing found on record
- Vehicle out-of-service rate 30.0% — above the 20.7% national average
- 12 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
4041960
Safety Rating
Not Rated
Operation Classification
Authorized for hire
MCS-150 Filed
January 21, 2025
FMCSA Registration
March 10, 2023
Annual Mileage
10,000 mi (2024)
Contact Information
Address
1411 Southpoint Dr, San Marcos, TX 78666
Phone
Email
Owner / Officer
Zuleyma Jhaciyareth Lopez Mancillas
Cargo Types
Other Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
12
Driver Inspections
0
Vehicle Inspections
12
Out-of-Service Violations
10
Violations by Category
Vehicle Maintenance33
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Vehicle OOS Rate30.0% · national avg 20.7%
⚠ Above national average (9.3pp higher)
70.0% of 10 inspections in the last 24 months put a driver or vehicle out of service —
98th percentile among carriers with 10–24 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
10 of 10 inspections
Unsafe Driving
0 of 10 inspections
Hours of Service
0 of 10 inspections
Driver Fitness
4 of 10 inspections
Controlled Substances
0 of 10 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
TX11
Fleet & Equipment (6)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~3
of 2 reported to FMCSA
Trailers
~3
seen at inspection
Equipment types observed
Tractor
3
Grain / Hopper
2
Semi-trailer
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2012 Kenworth T8 Series | Tractor · Class 8 | 1XKDD49X0CJ332150 | 6 | 5 |
| Othr | Semi-trailer | 5MC114024DP015205 | 5 | 4 |
| 2012 Kenworth T8 Series | Tractor · Class 8 | 1XKDD49X4CJ332149 | 4 | 2 |
| 2008 Manac Trailers Usa Manac | Grain / Hopper | 5MC1116218P009695 | 3 | 1 |
| 2008 Manac Trailers Usa Manac | Grain / Hopper | 5MC1116248P009691 | 3 | 3 |
| 2001 Kenworth T600 | Tractor · Class 8 | 1XKAD69X71R866470 | 1 | 1 |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (12)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| June 7, 2026 | V262416425 | 4515 FM2439, TX | II | 3 | 2 | YARD | Truck Tractor Semi-trailer |
KENWORTH OTHR |
1XKDD49X0CJ332150 5MC114024DP015205 |
TX 1M70504 TX 174B690 |
| 391.11B5-DNL | OOSDriver does not have a valid operator's license for the CMV being operated | License-related: High | ||||||||
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| 393.78 | Wipers - Inoperative / missing / damaged wipers | Windshield/ Glass/ Markings | ||||||||
| June 3, 2026 | V262309250 | 1132 US183, TX | II | 3 | — | COLORADO MATERIALS | Truck Tractor Semi-trailer |
KENWORTH MANAC TRAILERS USA |
1XKDD49X4CJ332149 5MC1116218P009695 |
TX 1M70472 TX 097C991 |
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | Brakes All Others | ||||||||
| 393.55E | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | Brakes All Others | ||||||||
| 396.17C | Operating a CMV without proof of a periodic inspection | Inspection Reports | ||||||||
| April 16, 2026 | V262322041 | 1138 US281, TX | II | 1 | — | FM 1623/JOB SITE | Truck Tractor Semi-trailer |
KENWORTH MANAC TRAILERS USA |
1XKDD49X4CJ332149 5MC1116218P009695 |
TX 1M70472 TX 097C991 |
| 393.51 | No or defective brake warning device or pressure gauge | Brakes All Others | ||||||||
| March 18, 2026 | V262277488 | 427 US87 NB, TX | II | 5 | 1 | COLRADO MATERIALS | Truck Tractor Semi-trailer |
KENWORTH MANAC TRAILERS USA |
1XKDD49X4CJ332149 5MC1116218P009695 |
TX 1M70472 TX 097C991 |
| 396.3A1BL | OOSBrake system pressure loss | Brakes All Others | ||||||||
| 393.9 | Inoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 393.9T | Inoperable tail lamp | Lighting | ||||||||
| 393.9TS | Inoperative turn signal | Lighting | ||||||||
| 396.3A1B | Brakes (general) Explain: | Brakes All Others | ||||||||
| February 19, 2026 | V262159237 | 4400 TX21, TX | II | 5 | 1 | COLORADO MATERIALS | Truck Tractor Semi-trailer |
KENWORTH OTHR |
1XKDD49X0CJ332150 5MC114024DP015205 |
TX 1M70504 TX 174B690 |
| 393.207A | OOSAxle positioning parts defective/missing | Suspension | ||||||||
| 396.5B-HWSLOW | Hubs - Wheel seal leaking - outer wheel | Wheels Studs Clamps Etc. | ||||||||
| 392.2W | Excessive Weight violation | |||||||||
| 392.2W | Excessive Weight violation | |||||||||
| 392.2W | Excessive Weight violation | |||||||||
| November 17, 2025 | V252107903 | IH10 EB KINGSBURY SCALE, TX | II | 5 | — | TEXAS MATERIAL | Truck Tractor Semi-trailer |
KENWORTH MANA |
1XKDD49X0CJ332150 5MC114024DP015205 |
TX 1M70504 TX 174B690 |
| 390.21A | Not marked in accordance with regulations | |||||||||
| 393.9 | Inoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 392.2W | Excessive Weight violation | |||||||||
| 392.2W | Excessive Weight violation | |||||||||
| 392.2W | Excessive Weight violation | |||||||||
| October 7, 2025 | V252060009 | US181 KARNES SCALE, TX | II | 3 | 1 | FM623 | Truck Tractor Semi-trailer |
KENWORTH CPS |
1XKDD49X0CJ332150 5MC114024DP015205 |
TX 1M70504 TX 174B690 |
| 393.207A | OOSAxle positioning parts defective/missing | Suspension | ||||||||
| 393.209E | Power steering violations | Steering Mechanism | ||||||||
| 393.9H | Inoperable head lamps | Lighting | ||||||||
| June 30, 2025 | 76O79DRCKG | US-0281 IN BURNET CO. (418-460, TX | II | 5 | 1 | TEXAS MATERIALS | Straight Truck Semi-trailer |
KENWORTH MANAC TRAILERS USA |
1XKDD49X0CJ332150 5MC1116248P009691 |
TX 8147G64 TX X39081 |
| 383.23A2 | OOSOperating a CMV without a CDL | License-related: High | ||||||||
| 396.3A1 | Inspection, repair and maintenance of parts and accessories | Wheels Studs Clamps Etc. | ||||||||
| 396.3A1 | Inspection, repair and maintenance of parts and accessories | Wheels Studs Clamps Etc. | ||||||||
| 393.55D3 | No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001 | Brakes All Others | ||||||||
| 396.17C | Operating a CMV without proof of a periodic inspection | Inspection Reports | ||||||||
| June 5, 2025 | V251904283 | 404 TX123, TX | II | 9 | 1 | ROAD CONSTRUCTION | Truck Tractor Semi-trailer |
KENWORTH MANAC TRAILERS USA |
1XKDD49X0CJ332150 5MC1116248P009691 |
TX 8147G64 TX X39081 |
| 383.23A2 | OOSOperating a CMV without a CDL | License-related: High | ||||||||
| 393.209E | Power steering violations | Steering Mechanism | ||||||||
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | Brakes All Others | ||||||||
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | Brakes All Others | ||||||||
| 393.55E | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | Brakes All Others | ||||||||
| 393.75C | Tire-other tread depth less than 2/32 of inch measured in a major tread groove | Tires | ||||||||
| 393.75C | Tire-other tread depth less than 2/32 of inch measured in a major tread groove | Tires | ||||||||
| 393.95F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Emergency Equipment | ||||||||
| 396.17C | Operating a CMV without proof of a periodic inspection | Inspection Reports | ||||||||
| April 24, 2025 | V251836558 | 4554 US281 AT CEFCO, TX | II | 4 | 1 | TEXAS MATERIALS | Truck Tractor Semi-trailer |
KENWORTH MANA |
1XKDD49X4CJ332149 5MC114024DP015205 |
TX 1M70472 TX 174B690 |
| 383.23A2 | OOSOperating a CMV without a CDL | License-related: High | ||||||||
| 393.11 | No or defective lighting devices or reflective material as required | Reflective Sheeting | ||||||||
| 393.55E | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | Brakes All Others | ||||||||
| 396.17C | Operating a CMV without proof of a periodic inspection | Inspection Reports | ||||||||
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| COLORADO MATERIALS | 3 | June 3, 2026 |
| TEXAS MATERIALS | 2 | June 30, 2025 |
| FM 1623/JOB SITE | 1 | April 16, 2026 |
| COLRADO MATERIALS | 1 | March 18, 2026 |
| TEXAS MATERIAL | 1 | November 17, 2025 |
| FM623 | 1 | October 7, 2025 |
| ROAD CONSTRUCTION | 1 | June 5, 2025 |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 18, 2026.
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