N.J. Stat. Ann. § 34:11-56.91

15. The waterfront employer shall pay an initial annual non-refundable registration fee of $300 to the commissioner. The non-refundable registration fee for the second annual registration shall be $300. Upon successful completion of two consecutive years of registration, a waterfront employer may elect to register for a two-year period and pay a non-refundable registration fee of $500.