H.B. No. 500 is a comprehensive legislative bill that proposes significant supplemental appropriations and adjustments to various state funds, primarily targeting health and human services, infrastructure, and historical preservation. Key allocations include $1 billion to the Employees Retirement System to address unfunded actuarial liabilities, $40.5 million for crime victim compensation, and $100 million for courthouse preservation grants. The bill also emphasizes mental health services, with $150 million earmarked for the construction of the El Paso State Hospital and additional funds for facilities in Brazoria and Tarrant Counties. Furthermore, it includes amendments to existing appropriations, such as increasing the capacity of the Terrell State Hospital and the North Texas State Hospital, and allows the Health and Human Services Commission to transfer unexpended balances for Medicaid services.

In addition to health and human services, the bill allocates substantial funding across various sectors, including education, transportation, and cybersecurity. Notable appropriations include $389 million for the Foundation School Program, $52 million for the Department of Transportation to purchase new aircraft, and $24 million for cybersecurity services across state agencies. The bill also addresses unexpended balances from previous appropriations, ensuring funds are allocated for specific purposes, such as $125 million for state park acquisitions and $7 million for renovations at The University of Texas Health Science Center. Overall, H.B. No. 500 aims to enhance state services and infrastructure while ensuring oversight and accountability in the use of state funds.