Diamond Express

Interstate carrier in San Antonio, Texas · Legal name: Motorcar Carriers LLC

San Antonio, TX 78217 Since 2017 USDOT 2974842 MC10870

General Freight
Motor Vehicles

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Compliance standing for USDOT 2974842

0 of 3 items need the owner's attention

MCS-150 filing Filed May 2026
Safety rating None on record
Operating authority MC10870

Company overview

Awaiting owner confirmation

USDOT number: 2974842
Operating authority: MC10870
Operation type: Interstate
Carrier classification: Authorized For Hire
Power units: 1
Trucks / tractors: 1
Drivers: 1
Hazmat: Yes
Annual mileage reported: 136,052 (2025)
USDOT registered since: 2017
Last MCS-150 filing: May 2026

Built from public registration records.

Cargo and services

General Freight; Motor Vehicles

DOT compliance requirements for Diamond Express

Based on this carrier's registration profile, these federal requirements apply:

USDOT registration and MCS-150 biennial update

Every registered carrier must keep its MCS-150 filing current and update it at least every two years. Missing the biennial update window can deactivate USDOT number 2974842. Check this company's MCS-150 deadline

Driver qualification files

With 1 driver on record, this carrier must maintain a complete DQ file for each driver: applications, MVRs, medical certificates and road test records. DQ file services

Hazardous materials compliance

This carrier is flagged for hazardous materials. That adds hazmat registration, placarding, security planning and driver training requirements on top of standard rules. Hazmat compliance help

Hours of service and ELD

As an interstate operation, drivers are subject to federal hours-of-service limits and, in most cases, electronic logging device requirements. ELD & HOS support