The Governor's proposed biennial budget bill shall include, for each fiscal year, an appropriation for operating costs for local correctional facilities. The proposed appropriation shall include:
1. An amount for compensating localities for the cost of maintaining prisoners arrested on state warrants in local jails, regional jails and jail farms, at a specified rate per prisoner day;
2. An amount for maintaining convicted state felons in local correctional facilities, at a specified rate per felon day, pursuant to § 53.1-20.1;
3. An amount to pay two-thirds of the salaries of medical and treatment personnel approved by the State Compensation Board; and
4. An amount to be set aside for unanticipated medical emergencies.