The bill establishes a Washington state supply chain competitiveness infrastructure program designed to enhance the state's global trade competitiveness by improving critical infrastructure for the transport and movement of goods. It emphasizes collaboration among stakeholders, including public ports, tribal governments, and sectors like trucking, rail, and manufacturing, to prioritize projects that enhance supply chain efficiency and capacity. A dedicated account will be created in the state treasury to fund this program, drawing from various sources such as legislative appropriations and loan repayments, with a focus on projects that improve transportation infrastructure and support Washington's international trade economy.

In addition to establishing the infrastructure program, the bill modifies the management of the treasury income account by clarifying its subject to chapter 43.88 RCW and eliminating the requirement for appropriations for payments to financial institutions. It mandates that payments occur before the distribution of earnings, which the state treasurer will distribute monthly to the general fund and specified accounts based on their average daily balances. The bill introduces the "supply chain competitiveness infrastructure program account" as a new recipient of these earnings. Furthermore, it includes provisions for the expiration of certain sections, with Section 7 set to expire on July 1, 2028, and Section 8 taking effect on the same date, ensuring effective management and potential future adjustments to the law.