S.C. Code Ann. § 9-1-1620
(A) No later than the date the first payment of a retirement allowance is due, a member shall elect a form of monthly payment from the following options:
Option A. The maximum retirement allowance payable under law for the life of the member. Upon the member's death, the member's designated beneficiary is entitled to receive any remaining member contributions.
Option B. A reduced retirement allowance payable during the retired member's life, which continues after the member's death for the life of the member's designated beneficiary or, if the member selects multiple beneficiaries, which continues after the member's death in equal shares to and for the life of each of two or more beneficiaries. The reduced retirement allowance payable under this option must be the actuarial equivalent of the maximum retirement allowance payable to the member under law, and if the member selects multiple beneficiaries, the benefit reduction factor must be based on the average age of the designated beneficiaries. If all of the designated beneficiaries predecease the member, then the member shall receive a retirement allowance equal to the maximum retirement allowance payable under law to the member. Any retirement allowance payable under this option, except an allowance for disability retirement pursuant to Section 9-1-1540, shall be subject to the incidental death benefit limitation upon the payment of survivorship benefits to a nonspouse beneficiary under Section 401(a)(9)(G) of the Internal Revenue Code and Treasury Regulation Section 1.401(a)(9)-6, Q&A-2.
Option C. A reduced retirement allowance payable during the retired member's life, which continues after the member's death at one-half the rate paid to the member for the life of the member's designated beneficiary or, if the member selects multiple beneficiaries, which continues after the member's death at one-half the rate paid to the member in equal shares to and for the life of each of two or more beneficiaries. The reduced retirement allowance payable under this option must be the actuarial equivalent of the maximum retirement allowance payable to the member under law, and if the member selects multiple beneficiaries, the benefit reduction factor must be based on the average age of the designated beneficiaries. If all of the designated beneficiaries predecease the member, then the member shall receive a retirement allowance equal to the maximum retirement allowance payable under law to the member.
(B)
HISTORY: 1962 Code Section 61-111; 1952 Code Section 61-111; 1945 (44) 212; 1949 (46) 424; 1955 (49) 38; 1964 (53) 1843; 1982 Act No. 369, Section 1; 1984 Act No. 381, Section 1; 1985 Act No. 201, Part II, Section 65A; 1986 Act No. 540, Part II, Section 23A, effective June 18, 1986, and became law without the Governor's signature; 1990 Act No. 412, Section 1, eff January 1, 1991, except Option 4 which became eff July 1, 1990; 1992 Act No. 336, Sections 1, 6, eff May 4, 1992; 1996 Act No. 458, Part II, Section 47A, eff June 19, 1996; 2000 Act No. 387, Part II, Section 67S, eff January 1, 2001; 2008 Act No. 311, Sections 5 and 32, eff June 4, 2008; 2015 Act No. 27 (S.373), Section 1, eff June 1, 2015.
2015 Act No. 27, Section 3, provides as follows:
"SECTION 3. This act takes effect upon approval by the Governor and applies to any new form of monthly payment elected thereafter due to a change in marital status."