N.J. Stat. § 40A:10-23.1
Notwithstanding the provisions of N.J.S. 40A:10-23 or any other law to the contrary, a county of the second class which has entered into contracts of group hospitalization, medical, surgical, major medical or health insurance or contracted with a nonprofit hospital service or medical service corporation pursuant to N.J.S. 40A:10-17 shall pay the entire cost of such coverage during retirement for any policeman, as defined in section 1 of P.L. 1944, c.255 (C.43:16A-1), who is enrolled in the Police and Firemen's Retirement System of New Jersey and who retires from service with the county after September 30, 1991 and on or before September 30, 1993 and for the employee's dependents, as well as the cost of the employee's coverage under Part B of Medicare, if the employee has a minimum of 25 years of public employment at least 15 years of which were with the county.
Any person who qualifies for the benefit provided pursuant to this section but who retired prior to the effective date of this act shall be reimbursed by the county for the cost of coverage incurred since the date of retirement.
N.J.S. § 40A:10-23.1