Article - State Personnel and Pensions
(a) Except as provided in subsection (b) of this section, regular interest is payable on member contributions until retirement or withdrawal of accumulated contributions at the rate of:
(1) 4% a year, compounded annually, for a member who has transferred from the Employees’ Retirement System on or before December 31, 2004; or
(2) 5% a year, compounded annually, for each other member.
(b) No further interest shall be paid on member contributions after membership ends if the former member is not eligible to receive a vested allowance under Title 29, Subtitle 3 of this article.