Miss. Code Ann. § 21-29-319

Deductions made prior to retirement by the employer for employment-related fringe benefits may continue to be paid after retirement in accordance with rules and regulations established by the board of trustees if the retirement allowance payable under Section 21-29-1 et seq. , Section 21-29-101 et seq. , and Section 21-29-201 et seq. , is in an amount sufficient to cover the deductions.