N.J. Stat. Ann. § 43:13-22.59c

11. At the time it makes its annual normal contribution to the retirement system, the employer shall pay to the retirement system an additional amount equivalent to the cost of the adjustment in retirement allowances or pensions and in survivorship benefits payable to retirants and beneficiaries in the prior year pursuant to sections 7 through 13 of P.L.1990, c.20 (C.43:13-22.69 et seq.), except the initial payment shall be equivalent to the cost of the adjustment beginning on the effective date of P.L.2013, c.282.