N.J. Stat. § 18A:66-90
On or before September 1 of each year, on the basis of the most recent actuarial valuation of the Teachers' Pension and Annuity Fund and on the basis of the appropriate social security rate of contribution, the Director of the Division of Pensions in the State Department of the Treasury, shall certify to the commissioner of education of the State Department of Education the percentage of salaries which the department and each board of education, school district or agency of this State must appropriate in its next fiscal year project budget to cover the amount of the increase and the cost of pension, group life insurance, social security and other benefits provided by this article attributable to carrying out the programs financed by the Federal Government involving members of the Teachers' Pension and Annuity Fund. The commissioner shall promptly notify each public employer of the percentage certified and the public employer shall, within 90 days after the close of such next fiscal year, together with supporting information prescribed by the Director of the Division of Pensions, reimburse the State the amount of such increased cost from funds allocated to the public employer from the Federal Government and involving members of the Teachers' Pension and Annuity Fund.
N.J.S. § 18A:66-90