This bill amends RCW 74.60.020 to define and limit how the hospital safety net assessment fund may be used. It designates up to $527,000,000 from the fund for the 2025–2027 biennium and $552,000,000 per biennium beginning July 1, 2027, to be used in lieu of state general fund payments for Medicaid hospital services, with $160,000,000 per biennium reserved for legislative appropriation for postacute hospital transitions. The amendment also caps administrative expenses at up to $2,000,000 per biennium, provides carryover rules for unexpended balances, and states that if required payments under RCW 74.60.120 and 74.60.130 cannot be fully distributed in a fiscal year the total must be reduced proportionately. Section 1 takes effect when section 3, chapter 430, Laws of 2023 takes effect. The bill modifies funding and payment procedures: it requires the fund, combined with federal funds, to provide a 1% increase in Medicaid hospital inpatient rates for Medicaid prospective payment system hospitals and designated public hospitals eligible for certain quality incentives, subject to source restrictions on which assessment receipts may generate which payments. It requires annual verification (by May 16 each year, beginning May 16, 2018) that eligible hospitals are in “substantial compliance” with reporting requirements (defined as submitting at least 75% of required reports by the due date) before distributing quality improvement incentives; incentive distributions begin upon implementation of programs authorized in chapter 430, Laws of 2023 and each January 1 thereafter. The bill directs annual payments from the fund of $2,000,000 to specified University of Washington psychiatry residency slots and $4,100,000 to family medicine residency slots for slots where residents are employed by hospitals. The amendment creates procedural and financial remedies if federal noncompliance is later found: it authorizes repayment to the federal government and hospital refunds if assessments or payment increases are finally determined to be out of compliance with federal law, and allows the state to develop repayment plans or deduct from future Medicaid payments if hospitals cannot refund. The text repeatedly refers to “the authority” but does not identify which specific agency that term denotes, and full effect may depend on the referenced RCW sections and section 3 of chapter 430, Laws of 2023, which are not included here.

If enacted, the bill directs a dedicated hospital safety net fund to replace part of the state general fund support for Medicaid hospital services by providing up to $527 million for the 2025–2027 biennium and $552 million per biennium beginning July 1, 2027, with $160 million each biennium reserved for legislative appropriation to support postacute hospital transitions. The fund must also be used, together with federal funds, to deliver a 1% increase in inpatient Medicaid rates for eligible hospitals, to make annual quality incentive payments only to hospitals that meet "substantial compliance" reporting (at least 75% of required reports), to pay $2 million annually to specified psychiatry residency slots and $4.1 million to family medicine residency slots at the University of Washington, and to cover up to $2 million per biennium in administrative costs. Unspent dollars roll forward to reduce future assessments, payments are reduced proportionally if the fund can’t meet required distributions, and the state may have to repay federal funds or require hospital refunds if the program is later found noncompliant. Hospitals are the most affected party: many will see some Medicaid payment support come from assessment dollars instead of the general fund, some will receive a modest 1% rate boost and potential quality payments but only if reporting compliance is met, and all face the risk of being required to refund payments or having future Medicaid payments reduced if federal rules are violated. The Department of Health and the unidentified administering authority take on verification and administrative duties and limited costs, and the Legislature controls the reserved $160 million for postacute transitions. Implementation timing and some operational details are unclear because the identity of "the authority" and how this interacts with section 3 of chapter 430, Laws of 2023, are not specified in the provided text.