N.J. Stat. § 18A:66-126.4
The employer shall pay one-half the cost of the increase in the retirement allowances payable to retirants who retired from the employ of such employer. Certification of the amounts due shall be made by the board of trustees to each employer. Each employer shall appropriate the amounts so certified in the fiscal year next following its fiscal year in which such certification is made. Such amounts shall be paid by each employer to the retirement system. In making such certifications to employers in the years after 1970 the board of trustees shall take into account payments made by the employer, payments to retirants of such employer and prospective payments to be made to such retirants in the following year.
The increase in retirement allowances provided for under this act shall commence provided, that there is appropriated the amount certified by the Director of the Division of Pensions of the State Department of the Treasury to the Director of the State Division of Budget and Accounting as set forth in the Pension Increase Act (P.L. 1969, c.169). The increase in retirement allowances shall continue to be paid as long as there shall be appropriated the amounts so certified. In the event that the necessary funds are not so appropriated, the increase in retirement allowances shall cease; no further payments shall be made by other employers; refunds shall be made by the retirement system to all employers of any balances unexpended on their account.
N.J.S. § 18A:66-126.4