Each of the commissioners shall, before entering upon the duties of his office, take and subscribe an oath that he will faithfully and impartially execute and perform the duties imposed upon him by law, and shall cause the same to be filed in the office of the Secretary of State. The commissioners shall each receive for service under this chapter an annual salary of $10,000.00, payable in equal monthly installments, and they shall receive no other compensation than that herein provided.
N.J.S. § 58:14-4