Originally Posted by Tide_from_PAE

State specific requirements make trip insurance sold by airlines and other travel providers not available to residents of certain states, WA being the most common state to be excluded. The insurers usually have a separate plan for residents of those excluded states available for the same price, but the travel providers themselves may not carry it. Some providers, such as Costco, do offer such plans, but oftentimes one will need to go to the insurers website to purchase the specific insurance plan for residents of ones state.