For the purpose of section 5-158g of the 1969 supplement to the general statutes, a state employee shall not be deemed to have elected to contribute to both social security and full part A of the state employees retirement system until he has completed the payments required by section 5-158b or 5-158c, as the case may be, either by payment in one sum or in the manner provided by section 5-158b-1. Until he has so completed payments, he shall not be allowed to cancel or reduce an option providing for his spouse, except as provided in section 5-165-1 of these regulations.
Conn. Agencies Regs. § 5-158b-3