Except as otherwise provided in this chapter, the lawful use of land or a building existing at the date of the adoption of this chapter may be continued although such use or building does not conform to the regulations specified by this chapter for the zone in which such land or building is located; provided, however, that:

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 existed before the adoption of the ordinance which rendered the use or structure nonconforming in accordance with N.J.S.A. 40:55D-68. The applicant shall have the burden of proof. Application pursuant hereto may be made to the administrative officer (Zoning Officer) within one year of the adoption of the ordinance which rendered the use or structure nonconforming. The administrative officer (Zoning Officer) shall collect a fee for such certificates in accordance with § 215-17 of this chapter. Denial by the administrative officer shall be appealable to the Planning Board in accordance with N.J.S.A. 40:44D-72 through 40:44D-75 and sections thereof.