Washington Truck Insurance

Washington Trucking Rules That Affect Your Insurance

Federal rules cover trucks that cross state lines. These are Washington's own rules, read from the state's official pages.

Who regulates in-state trucking

The Washington Utilities and Transportation Commission issues intrastate carrier permits and holds proof of insurance on file. utc.wa.gov · checked 2026-10-21All companies that apply for a UTC permit, certificate, or registration must have proof on file that they have public liability and property damage insurance.

USDOT number for in-state trucks

Washington requires a USDOT number for common carriers at 16,001+ pounds GVW or hauling hazmat; other UTC-regulated carriers (household goods, buses, solid waste) at any weight. utc.wa.gov · checked 2026-10-21Even if the FMCSA website indicates that you do not need a USDOT number, Washington law requires a USDOT number for intrastate operations as described above.

Minimum liability for in-state hauling

Washington common carriers of general commodities need $750,000 combined single limit for vehicles over 10,000 pounds ($300,000 under 10,000). utc.wa.gov · checked 2026-10-21For vehicles over 10,000 pounds: $750,000 Combined Single Limit (CSL) minimum.

How proof of insurance is filed

Insurers issue Form E as proof of insurance for the UTC; a certificate or binder works for up to 60 days. utc.wa.gov · checked 2026-10-21

Washington Truck Insurance FAQ