This section applies to employees of: the Maryland Environmental Service; the Northeast Maryland Waste Disposal Authority; the Baltimore Metropolitan Council; the Maryland Automobile Insurance Fund; the City of Hyattsville; and the Chesapeake Bay Commission. Subject to the regulations adopted under § 2–503 of this subtitle, an employee or, while receiving an allowance under the Employees’ Retirement System of the State of Maryland or the Employees’ Pension System of the State of Maryland, an employee’s surviving spouse: may enroll and participate in the health insurance or other benefit options established under the Program; and except as provided in subsection (d) of this section, is subject to the same terms and conditions as those provided under § 2–507 of this subtitle. While receiving an allowance under the Employees’ Retirement System of the State of Maryland or the Employees’ Pension System of the State of Maryland, a former employee or a former employee’s surviving spouse or dependent child: may enroll and participate in the health insurance benefit options established under the Program; and except as provided in subsection (d) of this section, is subject to the same terms and conditions as those provided under § 2–508 of this subtitle, with the employee’s service with the Maryland Environmental Service, Northeast Maryland Waste Disposal Authority, the Baltimore Metropolitan Council, the Maryland Automobile Insurance Fund, the City of Hyattsville, and the Chesapeake Bay Commission being included as part of the employee’s State service. The State may charge the Maryland Environmental Service, the Northeast Maryland Waste Disposal Authority, the Baltimore Metropolitan Council, the Chesapeake Bay Commission, and the Maryland Automobile Insurance Fund, or any successor agency, the respective participant’s total cost resulting from participation in the Program under this section. The respective employer share of the cost of the Program under this paragraph shall be based on the State subsidy allowed under this subtitle. The State may charge the City of Hyattsville the participant’s total cost resulting from participation in the Program under this section. The City of Hyattsville shall determine the extent to which the City will subsidize participation in the Program.