For Insurers

Medicare Supplement filing requirements

Here you can find Medicare Supplement filing requirements for initial filings, subsequent filings and annual filings.

Initial filings

Subsequent filings

  • Advertising, see WAC 284-66-300 - Requirements for advertising
  • Riders and endorsements, see WAC 284-66-260 - Riders and endorsements
  • Premium rate changes, see WAC 284-66-240 - Filing requirements and premium adjustments, and WAC 284-66-243(3) - Filing and approval of policies and certificates and premium rates

Annual filings