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JM MASCARO LIVESTOCK LLC
Ten Sleep, WY
CarrierChk vetting signal
Review recommended
Elevated Driver Out-of-Service Rate
This carrier's drivers were put out of service on 10.5% of 19 driver inspections in the last 24 months — higher than 78% of carriers with a comparable number of driver inspections (national average 5.5%). This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
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FMCSA status: Active & Authorized · DOT 2268133 · MC 934826
No Safety Rating
Active 10 yrs, 11 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-934826 · Common carrier
Insurance
On File
Great West Casualty Co
Safety
Not Rated
11.5% OOS · 35 inspections on record
Flags · 1
Elevated Driver Out-of-Service Rate
This carrier's drivers were put out of service on 10.5% of 19 driver inspections in the last 24 months — higher than 78% of carriers with a comparable number of driver inspections (national average 5.5%). This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
- Operating authority active for 10 yrs, 11 mo
- Insurance on file: $1,000,000
- Driver out-of-service rate 10.5% — above the 5.5% national average
- Vehicle out-of-service rate 14.3% — below the 20.7% national average
- 35 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC934826
Motor Carrier of Property (Except Household Goods) · $750,000 required
Insurance on File
Great West Casualty Co
BI&PD · $1,000,000 · Policy MCP70696A
Required Filings
Liability (BIPD)
$1,000,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
2268133
MC Number
MC-934826
Safety Rating
Not Rated
Operation Classification
Authorized for hire, Exempt for hire
MCS-150 Filed
March 14, 2025
FMCSA Registration
January 30, 2012
Authority Granted
November 3, 2015
Annual Mileage
1,907,000 mi (2024)
Contact Information
Address
700a State Highway 434, Ten Sleep, WY 82442
Phone
Email
Owner / Officer
Crystal Cartlon
Cargo Types
General FreightMetal/Sheet SteelLogs/Poles/BeamsBuilding MaterialsMachinery/Large ObjectsLivestockGrain/FeedDry BulkFarm SuppliesConstruction Materials
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
35
Driver Inspections
24
Vehicle Inspections
11
Out-of-Service Violations
6
Violations by Category
Vehicle Maintenance21
Unsafe Driving18
Hours of Service6
OOS Rates vs. National Average
Driver OOS Rate10.5% · national avg 5.5%
⚠ Above national average (5.0pp higher)
Vehicle OOS Rate14.3% · national avg 20.7%
✓ Below national average
11.5% of 26 inspections in the last 24 months put a driver or vehicle out of service —
33rd percentile among carriers with 25–99 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
3 of 7 inspections
Unsafe Driving
12 of 26 inspections
Hours of Service
3 of 26 inspections
Driver Fitness
1 of 26 inspections
Controlled Substances
0 of 26 inspections
Crash History (2)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
2
Crashes
0
Fatalities
0
Injuries
2
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| March 4, 2026 | CA | — | — | Yes | No Adverse Conditions · Dark - Not Lighted · Dry |
| November 13, 2024 | KY | — | — | Yes | Rain · Dark - Not Lighted · Wet |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA6
NM5
WA5
IA2
NE2
UT2
and 8 more states
Fleet & Equipment (34)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~17
of 17 reported to FMCSA
Trailers
~17
seen at inspection
Equipment types observed
Tractor
15
Livestock
13
Semi-trailer
4
Not Applicable
2
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2024 Peterbilt 389 | Tractor · Class 8 | 1NPXD49X3RD675687 | 4 | — |
| 2023 Wilson | Livestock · 48 ft | 1W1K64824P5563768 | 4 | — |
| 2024 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X1RR326408 | 4 | — |
| 2023 Wilson | Livestock · 48 ft | 1W1K64822P5563767 | 3 | 1 |
| Wilson Tra | Semi-trailer | 1W16482A6M5559747 | 2 | 1 |
| 2025 Wilson | Livestock · 48 ft | 1W1K64829S5568974 | 2 | — |
| 2025 Wilson | Livestock · 53 ft | 1W1K65324S5569656 | 2 | — |
| 2025 Wilson | Livestock · 53 ft | 1W1K65332S5568885 | 2 | — |
| 2023 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X5PR254626 | 2 | — |
| 2025 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X6SR373827 | 2 | — |
Show all 34 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2023 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X9PR257237 | 2 | 1 |
| 2023 Kenworth W9 Series | Tractor · Class 8 | 1XKWP40XXPR241715 | 2 | 1 |
| 2024 Kenworth T680 | Tractor · Class 8 | 1XKYD49X6RJ343065 | 2 | — |
| 2025 Kenworth T880 | Tractor · Class 8 | 1XKZP40X2SJ158316 | 2 | — |
| 2019 Peterbilt 389 | Tractor · Class 8 | 1NPXD49X5KD613553 | 1 | — |
| Wilx | Semi-trailer | 1W16482A2M5559745 | 1 | 1 |
| 2022 Wilson | Livestock · 48 ft | 1W1K64820N5561805 | 1 | — |
| 2024 Wilson | Livestock · 48 ft | 1W1K64821R5565691 | 1 | — |
| 2021 Wilson | Livestock · 48 ft | 1W1K64822M5560153 | 1 | — |
| 2022 Wilson | Livestock · 48 ft | 1W1K64827N5562692 | 1 | — |
| St | Semi-trailer | 1W1K64829N5561805 | 1 | — |
| Wilx | Semi-trailer | 1W1K64829N5561806 | 1 | — |
| 2022 Wilson | Livestock · 48 ft | 1W1K64829N5562693 | 1 | — |
| 2025 Wilson | Livestock · 53 ft | 1W1K65333S5568880 | 1 | — |
| 2025 Wilson | Livestock · 53 ft | 1W1K65335S5568881 | 1 | — |
| 2009 Wilson Trailer Co. | Livestock · 48 ft | 1W1UCSWJX9D538057 | 1 | — |
| 2020 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X5LR392693 | 1 | — |
| 2026 Kenworth W9 Series | Not Applicable · Class 8 | 1XKWD49X5TR227615 | 1 | — |
| 2026 Kenworth W9 Series | Not Applicable · Class 8 | 1XKWD49X7TR227616 | 1 | — |
| 2022 Kenworth W9 Series | Tractor · Class 8 | 1XKWD49X9NR121350 | 1 | — |
| 2025 Kenworth T880 | Tractor · Class 8 | 1XKZP40X9SJ158314 | 1 | — |
| 2025 Kenworth T880 | Tractor · Class 8 | 1XKZP4EX0SJ101041 | 1 | — |
| 2007 Peterbilt 379 | Tractor · Class 8 | 1XP5DB9X17D696276 | 1 | — |
| 2012 Peterbilt 389 | Tractor · Class 8 | 1XPXD49X7CD173861 | 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 (35)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| September 19, 2026 | V262611973 | TX, TX | II | 9 | — | JM MASCARO LIVESTOCK | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X1RR326408 1W1K64824P5563768 |
WY A29244 ID TS4018 |
| 393.11A1-CSURR | Conspicuity Systems - Truck tractor, upper rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 | Reflective Sheeting | ||||||||
| 393.11A1-CSLRR | Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997 | Reflective Sheeting | ||||||||
| 393.55C2-B | Air Brake - CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. System does not function or indicates | Brakes All Others | ||||||||
| 393.55E-B | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 | Brakes All Others | ||||||||
| 393.60D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Windshield/ Glass/ Markings | ||||||||
| 393.9A-LSLI | Lighting - Stop lamps - Any inoperative. | Lighting | ||||||||
| 393.9A-LRLI | Lighting - Tail lamp - Any inoperative | Lighting | ||||||||
| 393.9A-LTSIR | Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit | Lighting | ||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| September 3, 2026 | UEY5002975 | CA, CA | III | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X7TR227616 1W1K64822P5563767 |
WY A29333 ID TS4017 |
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| August 26, 2026 | 3728Q6N3KJ | NM, NM | III | 1 | — | MATTHEWS LAND CATTLE | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X1RR326408 1W1K64824P5563768 |
WY A29244 ID TS4018 |
| 392.2-SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Speeding 2 | ||||||||
| August 18, 2026 | 4080028539 | NV, NV | III | 2 | — | MOO MT. MILK | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X5TR227615 1W1K64820N5561805 |
UT A075018 ID TR3508 |
| 392.2-SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other | Dangerous Driving | ||||||||
| 395.8D4-HOSF | HOS (Form) - Record of duty status form failed to include name of carrier for each 24 hour period. Date: | |||||||||
| April 5, 2026 | 4248590281 | I-88, IL | III | — | — | MCENDAFFLER FEEDYARD | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X6SR373827 1W1K65324S5569656 |
UT A072069 UT A501087 |
| March 4, 2026 | UDGA003898 | DONNER PASS IF, CA | III | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X6SR373827 1W1K65324S5569656 |
UT A072069 UT A501087 |
| 392.2-SLLEWG2 | State/Local Laws - Excessive weight - 2501-5000 lbs over on allowable gross weight | |||||||||
| January 28, 2026 | 25LG002394 | BRIGHAM CITY UT | III | 1 | — | MATTHEW'S CATTLE | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKYD49X6RJ343065 1W1K64827N5562692 |
UT A065714 ID TS4705 |
| 392.2-SLLEWG1 | State/Local Laws - Excessive weight - 1-2500 lbs over on allowable gross weight | |||||||||
| December 11, 2025 | 6553P9LLWP | OFF ROADWAY NETWORK AT: LAT 34, NM | III | 1 | — | JM MASCARO | Straight Truck Semi-trailer |
KENWORTH WILSON |
1XKWP40XXPR241715 1W1K64822P5563767 |
UT A060852 ID TS4017 |
| 392.2C | Failure to obey traffic control device | Dangerous Driving | ||||||||
| December 11, 2025 | 0057000100 | GENOA OH | III | 4 | 1 | AMISH COWS | Truck Tractor Semi-trailer |
KENWORTH WILSON TRA |
1XKWD49X9PR257237 1W16482A6M5559747 |
UT Z086499 ID TP2202 |
| 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 | ||||||||
| 392.2-SLLLR | State/Local Laws - Lane restriction violation | Misc Violations | ||||||||
| 392.2-SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Speeding 3 | ||||||||
| 392.2-SLLILC | State/Local Laws - Improper lane change | Dangerous Driving | ||||||||
| November 23, 2025 | 000P15NFDP | 16 - I380 SB MM 53 BRANDON, IA | II | 10 | — | G & S LAMBS | Truck Tractor Semi-trailer |
KENWORTH WILSON |
1XKWD49X1RR326408 1W1K64824P5563768 |
UT A060878 ID TS4018 |
| 392.2C | Failure to obey traffic control device | Dangerous Driving | ||||||||
| 392.2-SLLIFTA | State/Local Laws - State tax/International Fuel Tax (IFTA) violation | |||||||||
| 392.2RG | State vehicle registration or License Plate violation | |||||||||
| 392.2RG | State vehicle registration or License Plate violation | |||||||||
| 392.2RG | State vehicle registration or License Plate violation | |||||||||
| 392.2-SLLEWG3 | State/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight | |||||||||
| 392.2-SLLEWA1 | State/Local Laws - Excessive weight - 1-2500 lbs over on an axle/axle groups | |||||||||
| 393.60D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Windshield/ Glass/ Markings | ||||||||
| 393.11TU | Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 | Reflective Sheeting | ||||||||
| 393.11TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | Reflective Sheeting | ||||||||
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 |
|---|---|---|
| MATTHEWS LAND CATTLE | 1 | August 26, 2026 |
| MOO MT. MILK | 1 | August 18, 2026 |
| MCENDAFFLER FEEDYARD | 1 | April 5, 2026 |
| MATTHEW'S CATTLE | 1 | January 28, 2026 |
| AMISH COWS | 1 | December 11, 2025 |
| G & S LAMBS | 1 | November 23, 2025 |
| TYSON | 1 | November 6, 2025 |
| CAMROSE COLONY | 1 | September 23, 2025 |
| JA MASCARO | 1 | July 18, 2025 |
| BATEMAN MOSIDA FARMS | 1 | June 9, 2025 |
| CACTUS HILL RANCH | 1 | March 21, 2025 |
| JM MASCERO | 1 | March 6, 2025 |
6 more shippers named at fewer inspections.
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| August 13, 2020 | DISCONTINUED REVOCATION | Common |
| August 4, 2020 | INVOLUNTARY REVOCATION | Common |
| June 26, 2019 | DISCONTINUED REVOCATION | Common |
| June 21, 2019 | INVOLUNTARY REVOCATION | Common |
| November 3, 2015 | GRANTED | Common Carrier |
| November 3, 2015 | Active GRANTED | Motor Carrier of Property (Except Household Goods) |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| May 1, 2021 | BI&PD Primary/Excess | On file |
BOC-3 Process Agent
#1 A+ AGENTS OF PROCESS, INC.
9611 ASPEN HILL CIR, Lone Tree, CO, 80124-6744
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 11, 2026.
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