Concerning budget sustainability.

This bill updates Washington state budget requirements to improve financial transparency and sustainability. It mandates that the governor's budget documents include detailed revenue and expenditure estimates, performance indicators, and specific financial data such as debt service costs and retirement system obligations. The legislation also requires that future budgets maintain a positive ending fund balance and ensure maintenance level spending does not exceed available fiscal resources. These changes directly affect the governor's office, state agencies, and the legislature by standardizing how budget information is presented and ensuring long-term fiscal planning.