No vacant land shall be occupied or used except for agricultural uses and no building hereafter erected or structurally altered shall be occupied or used until a certificate of occupancy shall have been issued by the Building Inspector stating that the building or proposed use of a building or land complies with all of the building and health rules and ordinances and with the provisions of these regulations.

Certificate of occupancy and compliance shall be applied for coincident with application for a building permit and shall be issued within ten (10) days after the completion of the erection or structural alterations to a building in conformity with these and other applicable provisions and regulations.

A record of all certificates shall be kept on file in the office of the Building Inspector and copies shall be furnished on request to any person having a proprietary or tenancy interest in the building affected.

The use of any building already erected at the passage of this article shall not be changed from one class to another unless and until a certificate of occupancy and compliance with the provisions of this article shall have been obtained from the Building Inspector.

Certificate of occupancy for the use of a vacant building or of vacant land or the change in the character of the use of a building or land as herein provided shall be applied for before any such land shall be occupied or used, and a certificate of occupancy shall be issued within ten (10) days after the application has been made, provided such use is in conformity with the provisions of these regulations.

Certificate of occupancy for nonconforming use existing at the time of the adoption of this article shall be prepared and the certificate shall state that the use is a nonconforming one, and does not conform to the provisions of this article.