N.J. Stat. § 40A:14-1
The board of chosen freeholders of any county, by resolution, may create the office of county fire marshal and such assistant fire marshals as deemed necessary and appoint a person or persons to hold such office on a permanent, full-time basis or on a part-time basis for a term of three years commencing January 15, except that the first appointee's term of office shall terminate on January 15 following his appointment. The board of chosen freeholders shall fix the amount of the annual salary of the county fire marshal and the assistant fire marshals, if any.
Any permanent, full-time county fire marshal and any such assistant fire marshal given approval by the board of chosen freeholders to engage in activities provided in N.J.S. 40A:14-2b.(8) shall be enrolled as members in the Police and Firemen's Retirement System of New Jersey, P.L. 1944, c.255 (C.43:16A-1 et seq.),as long as the person or persons holding such office meet all other requirements for membership. Any current fire marshals and assistant county fire marshals engaged in activities provided in N.J.S. 40A:14-2b.(8) at the time that this amendment takes effect shall be exempt from any age requirement for enrollment in the Police and Firemen's Retirement System of New Jersey. Any permanent, full-time county fire marshal and assistant fire marshal given approval by the board of chosen freeholders on or after October 1, 2001 to engage in activities provided in N.J.S. 40A:14-2b.(8) shall be enrolled as a member in the Police and Firemen's Retirement System effective upon the date when such approval by the board of chosen freeholders was given.
The cost of enrollment of a full-time county fire marshal or assistant fire marshal in the Police and Firemen's Retirement System of New Jersey pursuant to the provisions of this section shall not be the responsibility of the State.
N.J.S. § 40A:14-1