The State Firemen's Relief Fund and the State Firemen's Association and the laws by virtue of which they exist and operate shall not be affected by the provisions of this act, nor shall anything in this act contained be construed to in anywise limit or interfere with the operation and effect of sections 38:23-4, 38:23-5 and 38:23-6 of the Revised Statutes.
N.J.S. § 43:16A-22