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USDOT 3765638Active

Stoneworks

Legal name: Mason Supply Source LLC

Stoneworks's DOT number is USDOT 3765638.

Needs attention

1 item to check

Based in

Islandia, NY

Power units

2

Drivers

1

Operation

Intrastate

Watch Stoneworks for free

Next MCS-150 due: Aug 31, 2027

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Compliance check

From the FMCSA census and inspection files, checked Oct 19, 2026.

  • USDOT number status

    OK

    Active in the FMCSA census.

  • MCS-150 biennial update

    OK

    Next due Aug 31, 2027. Last filed Apr 13, 2026.

  • Safety rating

    Info

    Not rated. Most carriers are unrated until a compliance review.

  • Out-of-service rate (24 months)

    Check

    Vehicle 33.3% vs 22.26% national, driver 14.3% vs 6.67% national, across 7 inspections.

Roadside inspections, last 24 months

TypeInspectionsOut of serviceOOS rateNational avg
Vehicle6233.3%22.26%
Driver7114.3%6.67%

7 inspections and 12 violations since Oct 19, 2024. Last inspection Aug 24, 2026. National averages are FMCSA-published approximations.

Registration details

Legal name
Mason Supply Source LLC
DBA
Stoneworks
Classification
private property
CDL drivers
0
MCS-150 last filed
Apr 13, 2026
Reported mileage
20,000 (2025)
Added to FMCSA
Nov 16, 2021
Safety rating
Not rated

Source: FMCSA Motor Carrier Census and Vehicle Inspection File (data.transportation.gov), public records. Contact details are intentionally not shown. MyDotCheck is an independent service and is not affiliated with, endorsed by, or part of the U.S. Department of Transportation or FMCSA. Data comes from public FMCSA datasets and may lag official records by a day or more. Government filings can be made directly with FMCSA at no charge.