Seattle is the registered base for 2,364 motor carriers, running 87,340 power units and 59,092 drivers between them. 64% run a single truck and 30% run between two and ten, which is the size band where compliance duties are full federal obligations but there is rarely a dedicated safety office.
DOT Compliance Companies in Seattle, WA
DOT compliance resources for Seattle carriers working in Seattle port and air-cargo freight.
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DOT compliance providers serving Washington
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Gioioso Coaching and Consulting LLC
Premium MemberFor over 5 years, we've helped drivers safely get back behind the wheel so they can provide for themselves and their families. We will explain the entire process and help…
- SAP return-to-duty evaluations
Covers: Alaska · Arizona · Arkansas
The Seattle carrier base in numbers
| Carriers registered locally | 2,364 |
|---|---|
| Single-truck operators | 1,506 (64%) |
| Fleets of 2 to 10 power units | 698 (30%) |
| Fleets above 50 power units | 33 |
| Carriers flagged for hazardous materials | 147 (6%) |
| Registrations added since 2025 | 247 (10%) |
| Last MCS-150 filed more than 24 months ago | 1,196 (51%) |
Where Seattle differs from the national picture
MCS-150 currency runs well above the national average in this market: 51% of local carriers (1,196 in total) have not filed inside 24 months, against 38% nationally. Carriers with an overdue MCS-150 should update the filing to keep the registration current.
The share of newly registered carriers here is close to average, at 10% against 12% nationally (247 carriers). New entrant status changes the compliance process: new carriers may be subject to FMCSA’s New Entrant Safety Assurance Program, including a safety audit during the new-entrant period.
Hazmat presence sits close to the national norm here (6% against 7%, or 147 carriers), which pulls registration, training records and security planning into scope alongside the usual driver and vehicle files.
Freight and routes around Seattle
Seattle motor carriers handle marine-terminal drayage, air cargo, urban delivery and regional distribution around Puget Sound.
Federal and Washington requirements
- FMCSA: USDOT number, operating authority, safety regulations
- Washington State DOL: Intrastate registration, IRP apportioned plates, IFTA fuel tax
A change made in one system may also require a separate filing or update in the other.
Sources: Northwest Seaport Alliance, WSDOT Freight System Plan, FMCSA registration guidance.
More DOT compliance locations in Washington
DOT compliance questions for Seattle
What should a Seattle carrier check before accepting work around Northwest Seaport Alliance terminals in Seattle?
Confirm the responsible carrier, cargo and commerce, authority and insurance scope, driver status, available hours, exact vehicle configuration, facility access and route requirements before the Seattle assignment is released.
Does staying near Seattle make a shipment intrastate?
Not automatically. A Seattle carrier should review the shipment origin, intended destination and its place in any continuous interstate movement rather than deciding from local mileage alone.
Which records help explain delays on I-5, I-90, SR 99 and the Duwamish industrial routes?
For a Seattle trip, compare dispatch changes, road or facility timestamps, ELD or time records, fuel, inspections and delivery evidence. The records should explain both duty time and equipment custody.
How should vehicle defects be handled in Seattle?
The Seattle carrier should identify the unit, defect, person making the out-of-service decision, work performed and authorized return date. Record chassis condition at interchange and keep remote repair approval tied to the exact equipment number.
When is a compliance review useful for a Seattle fleet?
Arrange a Seattle review before new entrant activity, after route or fleet growth, when inspection patterns worsen, after a major customer changes the operation, or when required records cannot be retrieved consistently.
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