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Carrier profile · USDOT 2317666 · MC-812032 · FMCSA data fetched 2026-11-07

FOUR DIAMOND TRUCKING LLC

3 power units3 driversInterstateLONGMONT, CO

Census status Inactive (I)MC-812032 · code A
Official links FMCSA SAFER
← Back to overviewAuthority & Insurance · USDOT 2317666
02

Authority & Insurance

Operating authority by docket

No row matched this USDOT (bare or zero-padded) or its MC numbers. That alone does not prove the company has no authority — check FMCSA.

Source: Motus Carrier – All With History (inys-ebih) · raw queryDataset updated 2026-11-06 10:07 UTCFetched 2026-11-07 10:15 UTC

Authority status history

No authority status-change row matched. That does not prove there were no changes.

Source: Motus AuthHist – All With History (yu5v-wbh6) · raw queryDataset updated 2026-11-06 10:10 UTCFetched 2026-11-07 10:15 UTC

Status and reason text are shown exactly as FMCSA publishes them. The change date is FMCSA's status_change_date; “Dataset updated” is when FMCSA last published the file, and “Fetched” is when VAX read it. The two authority files are shown side by side and are not reconciled by VAX. Amounts: the dictionary says “thousands”, but published values look like dollars, so raw values are shown. Census status is not authority.

Insurance filings

No row matched this USDOT (bare or zero-padded) or its MC numbers. That does not prove the company has no insurance — check FMCSA L&I.

Source: Motus Insur – All With History (c5y8-a4uz) · raw queryDataset updated 2026-11-06 10:09 UTCFetched 2026-11-07 10:15 UTC

Filings as recorded by FMCSA — not a certificate of insurance or proof of current coverage. Amounts are source values (dictionary: thousands).

Source: Motus InsHist – All With History (3uet-3z4i) · raw queryDataset updated 2026-11-06 10:08 UTCFetched 2026-11-07 10:15 UTC

Source: InsHist – legacy (6sqe-dvqs) · raw queryDataset updated 2026-11-06 13:47 UTCFetched 2026-11-07 10:15 UTCFrozen by FMCSA since 2026-05-14

Prior policies

Insurance timeline
Hover a bar for insurer and dates.

Prior policies (3uet-3z4i + legacy 6sqe-dvqs) — effective → cancellation

ARTISAN & TRUCKERS CASUALTY COMPANY · 2023-10-02 → 2024-05-11

ARTISAN & TRUCKERS CASUALTY COMPANY · 2023-09-27 → 2023-10-02

ARTISAN & TRUCKERS CASUALTY COMPANY · 2023-07-21 → 2023-09-27

GREAT WEST CASUALTY CO. · 2013-01-14 → 2014-06-16

201420162018202020222024
2013-01-142024-05-11

Bars run only between published effective and cancellation dates. Current filings show their effective date only — no end is assumed and no continuous coverage is inferred. Current history: 3uet-3z4i; legacy rows from 6sqe-dvqs (frozen 2026-05-14) are kept only when not already in the current file.

  • ARTISAN & TRUCKERS CASUALTY COMPANY

    Effective
    2023-10-02
    Cancelled
    2024-05-11
    Method
    Cancelled
    Policy
    CA971703203
    Dataset
    6sqe-dvqs

  • ARTISAN & TRUCKERS CASUALTY COMPANY

    Effective
    2023-09-27
    Cancelled
    2023-10-02
    Method
    Cancelled
    Policy
    CA971703203
    Dataset
    6sqe-dvqs

  • ARTISAN & TRUCKERS CASUALTY COMPANY

    Effective
    2023-07-21
    Cancelled
    2023-09-27
    Method
    Cancelled
    Policy
    CA971703203
    Dataset
    6sqe-dvqs

  • GREAT WEST CASUALTY CO.

    Effective
    2013-01-14
    Cancelled
    2014-06-16
    Method
    Cancelled
    Policy
    MCP00831A
    Dataset
    6sqe-dvqs
06

Federal activity

  1. 2024-05-116sqe-dvqs

    Prior policy ended (cancelled) — ARTISAN & TRUCKERS CASUALTY COMPANY

  2. 2023-10-026sqe-dvqs

    Prior policy ended (cancelled) — ARTISAN & TRUCKERS CASUALTY COMPANY

  3. 2023-09-276sqe-dvqs

    Prior policy ended (cancelled) — ARTISAN & TRUCKERS CASUALTY COMPANY

  4. 2023-07-19Census

    Latest MCS-150 filing

  5. 2014-06-166sqe-dvqs

    Prior policy ended (cancelled) — GREAT WEST CASUALTY CO.

  6. 2012-06-20Census

    Added to FMCSA registration

Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).

Changes observed by VAX monitoring

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