USDOT 1584133 · Interstate · Texas

Brock Services LLC

DBA Scaffsource

US DOT1584133

Operating authorityNo for-hire authority on file

Insurance on fileNot on file

Safety ratingCheck on SAFER →

OperationInterstate

Census statusActive

ClassificationPrivate carrier

Power units (fleet)50

Drivers60

LocationDeer Park, TX 77536

Cargo carriedGeneral Freight, Metal: sheets, coils, rolls, Motor Vehicles, Driveaway/Towaway, Logs, Poles, Beams, Building materials / construction, Machinery, Large Objects, Passengers, Paper Products, Other

MCS-150 mileage60,734 mi (2025)

Phone (on file)(713) 363-4980

Sources: census record as of October 19, 2026; authority and insurance from FMCSA L&I, checked October 4, 2026; inspections and crashes from FMCSA SMS, checked October 4, 2026.

Quick answer

Brock Services LLC is an interstate motor carrier in Deer Park, Texas (USDOT 1584133) with no for-hire authority on file (typical for private/intrastate carriers) and a self-reported fleet of 50 power units.

Key takeaways

USDOT 1584133 is registered to Brock Services LLC, an interstate carrier based in Deer Park, TX.
No FMCSA operating authority on file. Interstate for-hire carriers need it; private carriers and intrastate-only carriers generally do not.
Self-reported fleet size: 50 power units and 60 drivers (FMCSA MCS-150 self-report; sanitized for plausibility).
Registered cargo types include general freight, metal: sheets, coils, rolls, motor vehicles, driveaway/towaway.

Safety & inspections

Official rating on SAFER →

12InspectionsFMCSA roadside, 24 months

1 of 10Vehicle inspections with an out-of-service order10.0%

1 of 12Driver inspections with an out-of-service order8.3%

Source: FMCSA Safety Measurement System, roadside inspections and crashes over a ~24-month window, checked October 4, 2026. An out-of-service rate is the share of inspections in which a vehicle or driver was placed out of service. With few inspections, one result moves the rate a lot. FMCSA crash records include crashes regardless of fault. None of these figures is a safety rating. The official Satisfactory/Conditional/Unsatisfactory safety rating is issued separately. See SAFER.

About Brock Services LLC

Brock Services LLC is an interstate motor carrier based in Deer Park, Texas, registered with the FMCSA under USDOT 1584133. It has no for-hire operating authority on file, which is typical for a private or intrastate carrier. The carrier self-reports a fleet of 50 power units and 60 drivers. Registered cargo includes general freight, metal: sheets, coils, rolls, motor vehicles, driveaway/towaway, logs, poles, beams. Its most recent MCS-150 filing reported 60,734 mi (2025).

Before you work with this carrier

Confirm the safety rating. Authority and insurance are shown or linked above. Open the SAFER snapshot for the official safety rating and out-of-service status.
Verify insurance is current. Coverage on file can lapse; confirm active BIPD/cargo before tendering a load.
Match authority to the work. For-hire loads need active operating authority. A USDOT number alone isn't enough.

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