La. Consolidated Public Retirement § 11:1615
Notwithstanding any provision of R.S. 11:143(D), any member of this system who, pursuant to R.S. 11:143, transfers service credit from another retirement system, fund, or plan at an accrual rate lower than the accrual rate applicable to the member's service credit earned in this system may purchase the accrual rate of this system for application to all of the member's transferred service credit by paying an amount calculated on an actuarial basis that totally offsets the increase in accrued liability of this system resulting from the upgrade in the accrual rate applicable to the member's transferred service credit. All payments for the purchase of the accrual rate upgrade shall be received by the system within forty-five days after written notice is given to the system that the member intends to transfer and upgrade all service credit.
La. Consolidated Public Retirement § 11:1615