Nothing in §§ 58-33-14 and 58-33-15 shall be construed as including within the definition of discrimination or rebates, readjustment of the rate of premium for a group insurance policy based on the loss or expense experience thereunder, at the end of the first or any subsequent policy year of insurance thereunder, which may be made retroactive only for such policy year.

Source: SL 1966, ch 111, ch 13, § 15 (3).