The bill establishes a new "medication rebate revenue account" within the custody of the state treasurer, specifically for managing pharmaceutical rebate revenues generated from the purchase of medications for individuals living with HIV who are enrolled in the early intervention program. The account will receive receipts from these rebates, which are funded by federal resources, and the funds can only be used for services outlined in the Ryan White HIV/AIDS program grant. Expenditures from this account can only be authorized by the secretary or their designee, and no appropriation is required for these expenditures, although the account will still adhere to allotment procedures under chapter 43.88 RCW.

Additionally, the bill reenacts and amends RCW 43.79A.040, which governs the management of the treasurer's trust fund. Among the amendments, it includes the medication rebate revenue account as one of the accounts that will receive a proportionate share of earnings based on their average daily balance. This ensures that the new account is integrated into the existing financial framework of the state treasury, allowing for proper management and distribution of funds while maintaining compliance with state financial regulations.