Certificate of Insurance Requirements in Washington

Washington has a monopolistic workers comp system (L&I); employers must carry state coverage, certificates prove it.

What contractors in Washington must carry

Workers comp via WA L&I; $1M liability typical for vendors.

Key facts about Washington COI compliance

  • Washington has a monopolistic workers comp system (L&I)
  • Employers carry state coverage — certificates prove it
  • L&I audits push contractors to keep clean COI files

Typical requirements in Washington

General liability$1M typical for vendors
Workers compensationVia WA L&I
Additional insuredCommon

Typical contract terms in Washington — always confirm with your legal counsel and insurer.

Statutory basis

Key references: RCW §51. Note that contract requirements often exceed state law — most commercial agreements in Washington require $1M+ general liability and additional insured endorsements regardless of statute.

How COIFort keeps you compliant in Washington

You define the requirement template once — coverage types, minimum limits, additional insured. Every certificate a Washington-based vendor uploads is automatically verified against it, and renewal reminders fire before any expiration. Your certificate history is audit-ready 24/7.

Frequently asked questions about Washington COI requirements

Workers comp via WA L&I; $1M liability typical for vendors. In Washington, coverage rules are defined by RCW §51. COIFort lets you require workers comp from every contractor and flags any certificate that does not include it.
Washington has a monopolistic workers comp system (L&I); employers must carry state coverage, certificates prove it. Beyond state law, most commercial contracts in Washington require $1M+ general liability and additional insured endorsements — COIFort verifies every submitted certificate against your exact template.
COIFort emails each contractor a secure upload link, verifies coverage types, limits and dates against your requirements, and reminds both sides before any certificate expires. No spreadsheets, no chasing.