TruckCodex

DIAMOND TRUCKLINE INC

USDOT 3122531 Active AUTHORIZED FOR HIRE Company officer: GURPREET SINGH General Freight Dry Bulk Beverages Paper Products Based in SEABECK, WA Grade A · 100
Brokers & shippers · booking check

Book with caution — review signals below

No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Caution
Policy effective · Jun 16, 2023
Review these
  • Vehicle OOS Rate above national average 28.0% vs 23.4% national (+4.6 pts).
On file
  • 1 active operating authority
  • Insurance on file · $750,000 UNITED FINANCIAL CASUALTY COMPANY · 91X Details →
  • BOC-3 process agent on file TRANSPORTATION AUTHORITY, LLC Details →
Company officer: GURPREET SINGH
Cargo: General Freight, Dry Bulk, Beverages, Paper Products
Built for brokers and shippers deciding whether to tender. Always confirm on FMCSA SAFER and L&I before booking — TruckCodex mirrors public filings and can lag by up to a day.
Plain-text risk summary (print / paste) 
TruckCodex risk summary — DIAMOND TRUCKLINE INC (USDOT 3122531)
Verdict: CAUTION
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Authority / census status: Active
Active BIPD limit: $750,000
Officer(s): GURPREET SINGH (Company officer)

Blockers:
  (none)

Cautions:
  • Vehicle OOS Rate above national average — 28.0% vs 23.4% national (+4.6 pts).

On file:
  • 1 active operating authority
  • Insurance on file · $750,000 — UNITED FINANCIAL CASUALTY COMPANY · 91X
  • BOC-3 process agent on file — TRANSPORTATION AUTHORITY, LLC

Source: https://truckcodex.com/usdot/3122531/
As of: Jul 17, 2026
Always confirm on FMCSA SAFER and L&I before tendering — TruckCodex mirrors public filings and can lag by up to a day.
TruckCodex · compliance grade

Compliance grade A

Composite of 3/5 scored components (mean 100/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.

A confidence 60% · 3/5 signals
Authority / census
Active · 100/100

Active census status with no OOS order or revoked authority on file.

Insurance / BIPD
BIPD active · 100/100

Active BIPD/Primary-like policy on file in our insurance history.

OOS vs peers
NR

Peer OOS benchmark unavailable (missing power units, OOS rates, or fewer than 5 same-size peers).

NR reason: getCarrierPeerSafety returned null.

FMCSA safety rating
Unrated

FMCSA has not assigned this carrier a formal safety rating. We do not invent one.

NR reason: No published FMCSA safety_rating.

Insurance-watch tier
Not on watch · 100/100

No BMC-91 insurance-lapse watch classification on file for this USDOT.

TruckCodex compliance grade from authority, BIPD, peer OOS, FMCSA safety rating, and insurance-watch signals. Not legal advice. See methodology. Booking triage on this page: Caution.

Operating authority
Insurance

UNITED FINANCIAL CASUALTY COMPANY · 91X · $750,000

1 active policy

BOC-3 agent

TRANSPORTATION AUTHORITY, LLC

Company profile

Company details
USDOT 3122531
MC / docket MC088764
Company officer GURPREET SINGH
Operation AUTHORIZED FOR HIRE
Cargo carried
General Freight, Dry Bulk, Beverages, Paper Products
Fleet size 4 units
Drivers 4
Annual mileage 550,000 mi
Contact & address
Phone: (206) 661-8226
Email: [email protected]
Physical
14174 NW HOLLY RD
SEABECK, WA 98380
Mailing address matches physical.
Registration & safety rating
USDOT 3122531
Operation AUTHORIZED FOR HIRE
Annual mileage (MCS-150) 550,000 mi
vs. National Average
Vehicle OOS Rate 28.0% vs 23.4% +4.6 pts
Driver OOS Rate 0.0% vs 6.7% -6.7 pts
Violations per Inspection 0.82 vs 1.80 -0.98
Peer tier (small fleets (≤10 power units)) median OOS rate: 50%
Active insurance
Related filings

Fleet details (MCS-150)

Vehicle type Owned Term leased Trip leased
Truck tractors 4 0 0
Trailers 4 0 0

Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).

Inspections (24 months)

All 39 inspections →
Driver Vehicle Hazmat
Inspections 28 28 0
OOS inspections 0 4 0
OOS percentage 0% 14.29% —
National average 6.67% 22.26% 4.44%

Roadside inspections in the last 24 months. National averages are FMCSA MCSAP reference rates (driver ~6.7%, vehicle ~23.4%, hazmat ~4.4%).

Power Units
4
Drivers
4
Inspections
39
FMCSA roadside history
OOS Rate (peak)
28.0%
driver or vehicle, whichever higher
Crashes (24m)
0
3 all-time
Authorities
1
1 active
Carrier analysis & narrative context SEO summary, status notes, AI overview, and safety profiles

DIAMOND TRUCKLINE INC is a motor carrier based in SEABECK, WA, registered with the FMCSA under USDOT 3122531. The carrier is currently active in FMCSA's records, and has not yet received a formal FMCSA safety rating. MCS-150 self-reporting puts the fleet at 4 power units and 4 drivers, with 39 roadside inspections on file and a peak out-of-service rate of 28.0%. Use this page to verify the carrier's authority and insurance, review its inspection and crash history, and cross-reference live data on FMCSA SAFER before booking a load or onboarding a partner.

Carrier is unrated

FMCSA has not assigned this carrier a formal safety rating. Use the inspection history and BASIC scores below to assess on-road performance.

Carrier overview

DIAMOND TRUCKLINE INC is a small fleet, operating 5 power units and 5 drivers, based in Seabeck, WA. Across 28 roadside inspections in the last 24 months, the fleet recorded a 14.3% out-of-service rate, with no reportable crashes on file. Operating authority is active for common.

Inspection profile

28 roadside inspections over the last 24 months, up 180% versus the prior 24 months, concentrated in CA (24) and WA (4), with Level 1 inspections the most common.

Violation profile

14.3% out-of-service rate; led by Vehicle Maintenance (65.2% of violations); top code 393.47E (Slack adjuster defective) cited 4 times.

Fleet profile

The fleet comprises 5 power units (small fleet) and 5 drivers; Freightliner, Utility, and Mack are the most-inspected makes.

Risk Signals

High OOS rate
Peak OOS rate of 28.0% is well above FMCSA MCSAP national averages (driver ~6.7%, vehicle ~23.4%).

Fleet History

Sourced from FMCSA daily imports; field-level change log. 1 tracked change on record.

Record Changes

  1. Power Units 5 4

Power Units Over Time

May 25, 2026 May 25, 2026

Bar height reflects reported power-unit count after each FMCSA filing update.

Inspection Analytics Monthly activity · BASIC mix · state map

Monthly Inspection Activity (24 months)

2024-08 2026-04

Violations by BASIC Category

Federal BASIC buckets for every citation issued against this carrier over the past 24 months.
Vehicle Maintenance
15 violations
5 OOS · 33.3%
Unsafe Driving
7 violations
Hours of Service
1 violation

Activity by State

States this carrier has been inspected in over the past 24 months.
State Inspections OOS OOS % Last Inspection
California (CA) 24 4 16.7% Apr 27, 2026
Washington (WA) 4 0 0.0% Mar 12, 2026
Vehicle Fleet Top makes and models observed in roadside inspections
Make Model Inspections
Freightliner 25
Utility 21
Wabash National 10
Mack 8
Volvo 3
Hyundai Translead 2
Unknown 1
Vanguard 1
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
BASIC Inspections Serious Measure Percentile Alert As Of
Driver Fitness 0 — 0.00 0 — Jul 13, 2026
Controlled Substances / Alcohol 0 — 0.00 0 — Jul 13, 2026
Hours of Service 1 — 0.03 0 — Jul 13, 2026
Unsafe Driving 3 — 3.60 4 — Jul 13, 2026
Vehicle Maintenance 10 — 3.74 4 — Jul 13, 2026

Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.

Recent Inspections (39 rows) View all 39 →
Inspection # Date ▼ State Level Station Vehicle Violations Top Codes OOS
87705791 Apr 27, 2026 CA 3 MISSION GRADE IF
FRHT STRAIGHT TRUCK
WA RP19620 · 3AKJHHDR3LSLS2619
0 — No
87540170 Apr 8, 2026 CA 1 CASTAIC C.V.E.F.
FRHT TRUCK TRACTOR
WA RP19924 · 1FUJHHDR0LLLN1586
0 — No
87304712 Mar 13, 2026 CA 1 DUNSMUIR GRADE IF
MACK TRUCK TRACTOR
WA RP15782 · 1M1AN4GY8KM008738
0 — No
87307955 Mar 12, 2026 WA 2 FEDERAL WAY WA
MACK TRUCK TRACTOR
WA RP15782 · 1M1AN4GY8KM008738
2 393.55E-B, 393.45D-B No
87124296 Feb 19, 2026 WA 3 KELSO WA
MACK TRUCK TRACTOR
WA RP15782 · 1M1AN4GY8KM008738
1 392.2-SLLTCD No
86868958 Jan 21, 2026 CA 1 COTTONWOOD IF
FRHT STRAIGHT TRUCK
WA RP19620 · 3AKJHHDR3LSLS2619
0 — No
86754016 Jan 8, 2026 CA 2 COTTONWOOD IF
FRHT STRAIGHT TRUCK
WA RP19924 · 1FUJHHDR0LLLN1586
0 — No
86729745 Jan 6, 2026 CA 1 COTTONWOOD IF
FRHT TRUCK TRACTOR
WA RP12642 · 3AKJHHDR7JSJJ7527
2 393.47D2-BLTBD, 393.24D-L No
86584373 Dec 15, 2025 CA 2 CASTAIC IF
MACK STRAIGHT TRUCK
WA RP15782 · 1M1AN4GY8KM008738
0 — No
86356811 Nov 14, 2025 WA 3 DU PONT WA
MACK TRUCK TRACTOR
WA RP15782 · 1M1AN4GY8KM008738
0 — No
85663767 Aug 29, 2025 CA 1 CHOWCHILLA RIVER EF
FRHT STRAIGHT TRUCK
WA RP12642 · 3AKJHHDR7JSJJ7527
0 — No
85661147 Aug 28, 2025 CA 1 CHOWCHILLA RIVER IF
FRHT TRUCK TRACTOR
WA RP12642 · 3AKJHHDR7JSJJ7527
4 393.207A-STBW, 393.45B2-BHTD, 392.2-SLLSR Yes
85610494 Aug 23, 2025 CA 2 DUNSMUIR GRADE IF
FRHT STRAIGHT TRUCK
WA RP12638 · 3AKJGLDR7GSGP8473
1 393.75A3-TAOL Yes
85402252 Jul 31, 2025 CA 1 COTTONWOOD IF
MACK TRUCK TRACTOR
WA RP15782 · 1M1AN4GY8KM008738
1 396.5B-HWSL No
85323892 Jul 23, 2025 CA 1 CORDELIA IF
FRHT TRUCK TRACTOR
WA RP19620 · 3AKJHHDR3LSLS2619
1 395.22H4-ELDBRODS No
84605981 Apr 29, 2025 CA 1 GRAPEVINE IF
FRHT STRAIGHT TRUCK
WA RP12638 · 3AKJGLDR7GSGP8473
4 396.3A1-BOS, 393.47E Yes
84498900 Apr 22, 2025 CA 2 DUNSMUIR GRADE IF
FRHT STRAIGHT TRUCK
WA RP12638 · 3AKJGLDR7GSGP8473
0 — No
84482223 Apr 22, 2025 CA 1 CHOWCHILLA RIVER IF
FRHT STRAIGHT TRUCK
WA RP19620 · 3AKJHHDR3LSLS2619
0 — No
84506768 Apr 21, 2025 CA 1 GRAPEVINE IF
MACK STRAIGHT TRUCK
WA RP15782 · 1M1AN4GY8KM008738
0 — No
83987728 Feb 22, 2025 CA 1 DUNSMUIR GRADE IF
FRHT TRUCK TRACTOR
WA RP19924 · 1FUJHHDR0LLLN1586
0 — No
83960167 Feb 20, 2025 CA 1 DUNSMUIR GRADE IF
FRHT TRUCK TRACTOR
WA RP12642 · 3AKJHHDR7JSJJ7527
1 393.47E No
83696950 Jan 23, 2025 WA 3 KELSO WA
FREIGHTLIN TRUCK TRACTOR
WA RP19924 · 1FUJHHDR0LLLN1586
1 392.2-SLLTCD No
83694254 Jan 15, 2025 CA 3 DUNSMUIR GRADE IF
FRHT STRAIGHT TRUCK
WA RP12642 · 3AKJHHDR7JSJJ7527
0 — No
83685223 Jan 14, 2025 CA 1 DUNSMUIR GRADE IF
FRHT STRAIGHT TRUCK
WA RP19620 · 3AKJHHDR3LSLS2619
0 — No
83313017 Dec 4, 2024 CA 3 I-5 SB TO TWIN CITIES
FRHT STRAIGHT TRUCK
WA RP12638 · 3AKJGLDR7GSGP8473
3 392.2-SLLTL, 392.2-SLL, 392.2-SLLUP No
Recent Crashes (3 rows)
Report # Date ▼ State Fatalities Injuries Tow Hazmat Severity
CA3902111408 Oct 19, 2021 CA 0 1 Yes No Injury
OR2019400163 Dec 12, 2019 OR 0 0 Yes No Tow
WA000E980122 Nov 4, 2019 WA 0 0 Yes No Tow
Authority Records (1 docket)
common
MC088764
Active
—
View full authority record →
MC Certificate Documents (1 PDF)

Authority Records (above) are FMCSA docket status and lifecycle events. MC Certificate Documents here are the archived PDF letters for each action — grants, reinstatements, revocations, name changes, and transfers. They are related but not the same dataset: one row per PDF letter, not one file per docket.

Click a row to open that specific letter. Multiple letters per docket are listed separately by action type and date.

Date Docket Action Authority PDF
Jun 22, 2018 MC88764-C CPL REVOCATION CPL →
Insurance Coverage Timeline (4 rows)

Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.

Insurer Policy # Type Limit Effective Cancel Status
UNITED FINANCIAL CASUALTY COMPANY CA00691888 91X $750,000 Jun 16, 2023 On file ACTIVE
UNITED FINANCIAL CASUALTY COMPANY CA00822926 BIPD/Primary — Mar 3, 2023 Jun 16, 2023 REPLACED
UNITED FINANCIAL CASUALTY COMPANY CA 0822926 BIPD/Primary — Jun 18, 2019 Mar 3, 2023 REPLACED
UNITED SPECIALTY INSURANCE COMPANY LZK-0000758-00 BIPD/Primary — Jun 18, 2018 Jun 18, 2019 CANCELLED
Compliance Timeline Merged authority / insurance / enforcement events
  1. Jun 16, 2023
    insurance
    TERM/REPL — UNITED FINANCIAL CASUALTY COMPANY
  2. Mar 3, 2023
    insurance
    TERM/REPL — UNITED FINANCIAL CASUALTY COMPANY
  3. Jun 20, 2019
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  4. Jun 18, 2019
    insurance
    CANCEL — UNITED SPECIALTY INSURANCE COMPANY
  5. Jun 22, 2018
    authority
    GRANTED — MOTOR PROPERTY COMMON CARRIER
    Details →
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for

Most-Inspected Stations

Station State Inspections OOS
COTTONWOOD IF CA 10 3
DUNSMUIR GRADE IF CA 8 1
CHOWCHILLA RIVER IF CA 4 1
GRAPEVINE IF CA 3 1
CASTAIC IF CA 2 0
KELSO WA WA 2 0
CASTAIC C.V.E.F. CA 1 0
CHOWCHILLA RIVER EF CA 1 0
CORDELIA IF CA 1 0
I-5 SB TO TWIN CITIES CA 1 0

Top Violation Codes Cited

Code Description Category Cited OOS
393.47(e) Slack adjuster defective Vehicle Maintenance 3 0
393.53(b) Steering system components worn Vehicle Maintenance 3 0
396.3(a)(1) Inspection/repair/maintenance - general Vehicle Maintenance 3 2
392.2 Operating a CMV while ill or fatigued Unsafe Driving 2 0
392.16(a) Failing to use seat belt (49 CFR) Unsafe Driving 1 0
393.207(a) Suspension defective Vehicle Maintenance 1 1
393.45 Brake tubing/hoses inadequate Vehicle Maintenance 1 0
393.55(d)(3) Coupling device/towing methods defective Vehicle Maintenance 1 0
393.55(e) Coupling device/towing methods defective Vehicle Maintenance 1 0
393.75(a)(3) Tire-flat and/or audible air leak Vehicle Maintenance 1 1
Related Records Cross-references to every adjacent page
Directory
Authority Records
Insurance Carriers
Process Agent (BOC-3)
Carrier Records
Discover
Explainers

How to verify DIAMOND TRUCKLINE INC

  1. Verify USDOT and MC numbers match the carrier's documents. Compare the USDOT number and MC docket on this page to the numbers on the carrier's invoice, rate confirmation, or load-board listing. A mismatch between the carrier's claimed numbers and the registered legal name is the single most common red flag.
  2. Check active operating authority and insurance status. Confirm the Authority Records show at least one ACTIVE docket for the type of operation you're booking, and that the Active Insurance card lists a current BIPD/Primary policy. A revoked authority or uninsured carrier cannot legally operate.
  3. Review safety rating and SMS BASIC scores. Check the carrier's FMCSA safety rating (if any) and the SMS BASIC table. A high percentile in any BASIC category — especially Unsafe Driving, HOS, or Vehicle Maintenance — is worth investigating before tendering a load.
  4. Examine inspection and crash history. Open the Inspection History and Crash History subpages for the full record. Look for patterns: repeat OOS findings on the same unit, multiple crashes in a short window, or violations clustered in one BASIC category.
  5. Cross-reference real-time data with FMCSA SAFER. For the most current snapshot — within 24 hours of any insurer filing or authority change — click through to the FMCSA SAFER lookup. TruckCodex mirrors SAFER and L&I daily; SAFER itself reflects filings within 24 hours.

Frequently asked questions about DIAMOND TRUCKLINE INC

Is DIAMOND TRUCKLINE INC an active motor carrier? ▾
Yes. DIAMOND TRUCKLINE INC is registered with the FMCSA under USDOT 3122531 and is currently shown as Active in the agency's Motor Carrier Management Information System (MCMIS). Active status means the carrier may legally operate, contingent on continuous insurance and authority filings.
What is DIAMOND TRUCKLINE INC's safety rating? ▾
DIAMOND TRUCKLINE INC is unrated. FMCSA assigns formal safety ratings only after a compliance review, and the agency has not yet completed one for this carrier. Being unrated is not by itself a red flag — most active carriers in the database are unrated. Review the inspection and BASIC data below to assess on-road performance.
How many inspections has DIAMOND TRUCKLINE INC had? ▾
39 roadside inspections are on file for DIAMOND TRUCKLINE INC in FMCSA's MCMIS database. Each inspection is summarized in the Inspection History section below — sortable by date, state, level, and out-of-service result. Newer inspections are pulled from the FMCSA SMS data feed daily.
What is DIAMOND TRUCKLINE INC's out-of-service rate? ▾
DIAMOND TRUCKLINE INC's peak out-of-service rate is 28.0% (whichever is higher of driver-OOS or vehicle-OOS, computed from FMCSA roadside inspection data). The national averages are roughly 6.7% for drivers and 23.4% for vehicles — see the peer-context card on this page for a side-by-side comparison.
Where is DIAMOND TRUCKLINE INC based? ▾
DIAMOND TRUCKLINE INC reports its physical address to the FMCSA as 14174 NW HOLLY RD, SEABECK, Washington 98380. Carriers must file a Form MCS-150 every two years to keep their address current; an outdated address is a common compliance flag.
Does DIAMOND TRUCKLINE INC have valid operating authority? ▾
Yes. DIAMOND TRUCKLINE INC holds 1 active FMCSA operating authority (MC088764). Each docket appears in the Authority Records section below with its full event history. Active authority means the carrier may legally operate as a for-hire carrier, contingent on current insurance and BOC-3 process-agent filings.
How many trucks and drivers does DIAMOND TRUCKLINE INC operate? ▾
DIAMOND TRUCKLINE INC self-reports 4 power units and 4 drivers on its most recent FMCSA Form MCS-150 filing. Power-unit and driver counts come from the carrier directly and are required to be updated every two years; very large fluctuations between filings can indicate fleet changes worth investigating.
Has DIAMOND TRUCKLINE INC had any crashes? ▾
3 FMCSA-reportable crashes are on file for DIAMOND TRUCKLINE INC in MCMIS. A reportable crash is one resulting in a fatality, an injury requiring transport for medical attention, or a vehicle disabled and towed from the scene. The full crash log is on the Crashes subpage with date, state, and outcome details.

About FMCSA carrier records

Every commercial motor carrier operating in the United States is required to register with the Federal Motor Carrier Safety Administration (FMCSA) and obtain a USDOT number. The USDOT number is a permanent, unique identifier — once assigned, it stays with the carrier for life and is never reissued to another company. Carriers must update their registration every two years on Form MCS-150 to keep their address, fleet size, and operating data current.

Carrier safety data lives in FMCSA's Motor Carrier Management Information System (MCMIS): roadside inspections, crashes, out-of-service findings, and the seven Behavior Analysis and Safety Improvement Categories (BASICs) that make up the SMS scoring methodology. For-hire carriers must also hold operating authority — an MC, FF, or MX docket number — which is separate from the USDOT number and requires continuous insurance and BOC-3 process-agent filings to remain active.

TruckCodex mirrors FMCSA's public SAFER and L&I systems on a daily refresh cycle. Every record on this page reflects what FMCSA has on file. We do not edit or modify carrier data — for real-time confirmation immediately before a transaction, click through to the FMCSA SAFER lookup linked in the related records section above. Safety ratings, when present, come from formal compliance reviews; most active carriers have not been reviewed and are correctly listed as unrated.

Data sources & freshness

TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.

FMCSA

Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.

Refreshed daily.
NHTSA

Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).

Refreshed daily.
EIA

Retail diesel and gasoline price history and state fuel-tax tables.

Refreshed weekly.
Transport Canada

Cross-border carrier registry and Canadian recall campaigns where applicable.

Refreshed weekly.

TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.