N.J. Admin. Code § 19:66-12.1
Any nonconforming use or structure existing as of January 2, 2018, may be continued upon the lot or in the structure so occupied and any such structure may be restored or repaired in the event of partial destruction thereof. The prospective purchaser, prospective mortgagee, or any other person interested in any land upon which a nonconforming use or structure exists may apply in writing for the issuance of a certificate certifying that the use or structure legally existed on the land before January 2, 2018, which rendered the use or structure nonconforming. The applicant shall have the burden of proof. An application pursuant to this subchapter may be made to the LURE official so designated to review such applications by January 2, 2023, or thereafter to the land use hearing officer, who shall review the application in accordance with the provisions of this chapter.
N.J. Admin. Code § 19:66-12.1