Since the 1990s, Washington has considered a financial responsibility requirement for class 1 facilities such as oil refineries, marine terminals and pipelines, as proof of being able to pay for the cost of damages of a potential spill. In December 2021, the issue was re-introduced to the Washington House of Representatives with House Bill 1691, passed in the House and the Senate by the spring of 2022, and will require Certificates of Financial Responsibility for class 1 facilities.