A retiree may elect to have the Board of Trustees deduct from the retiree’s allowance and pay for the retiree: dues for an employee organization; payments to the State Employees’ Credit Union of Maryland, Inc.; all or part of a premium for: insurance offered through an employee organization; or State-approved medical insurance for retirees; or any other deduction that the Board of Trustees allows by regulation, in the interest of members or retirees. A retiree who participates in medical insurance offered through a county may elect to have the Board of Trustees deduct from the retiree’s allowance and pay to the county all or part of the premium for locally approved medical insurance. Except for payments in accordance with paragraph (1) of this subsection, the State system or any unit of the State is not responsible for paying for medical insurance offered through a county.