N.J. Stat. § 43:15A-91
In the event the State Treasurer shall determine to purchase group insurance coverage for the noncontributory death benefits, premiums for the same shall be paid from a special fund, hereby created, called the "Group Insurance Premium Fund." The State Treasurer shall estimate annually the amount of premiums which will be required for such benefits for the ensuing fiscal year and shall certify such amounts to the State and other participating employers as due and owing from them. The State and other participating employers shall pay over to the State Treasurer the amount for premiums so certified and the State Treasurer shall deposit these amounts in the Group Insurance Premium Fund. During the period such group insurance policy or policies are in effect the State Treasurer shall in no way commingle moneys in this fund with any pension fund established in the Public Employees' Retirement-Social Security Integration Act.
In the event that the Board of Trustees of the Public Employees' Retirement System shall determine to purchase group coverage for the optional contributory death benefits, premiums for same shall be paid from a special fund hereby created called the "Contributory Group Insurance Premium Fund." While such group coverage shall be in force, the contributions from the compensation of members to provide such optional contributory death benefits shall be accumulated in said Contributory Group Insurance Premium Fund. Any dividend or retrospective rate credit allowed by an insurance company shall be credited to the aforesaid funds in an equitable manner.
N.J.S. § 43:15A-91