New Jersey Statutes Title 40. Municipalities and Counties 40 § 23-6.20

No county having a population in excess of four hundred thousand inhabitants other than a county of the first class, or the board of chosen freeholders thereof or any of its contractors, shall be required to pay any municipal fee or charge in order to secure a building permit for the erection or alteration of any county building or part thereof from the municipality wherein such building may be located.