N.J. Stat. § 17:36-6
The failure of any person, insured against loss or damage by fire in any insurance company doing business under the authority of the department, to furnish proofs of loss shall not be considered a waiver of any rights accruing under the policy of insurance, and shall not debar the person so holding insurance from a recovery under the policy or the collection of the sum which should be paid thereunder, unless after the loss sixty days' notice, in writing, that the company desires the proofs of loss is furnished the insured.
This section shall not be varied, altered, contradicted or affected by any agreement or contract, but shall remain in full force and effect notwithstanding any provision in any contract of insurance or other agreement to the contrary.
N.J.S. § 17:36-6