1. No land shall be occupied or used, and no building here-after erected or structurally altered shall be occupied or used in whole or in part for any purpose whatsoever, until a certificate is issued by the administrative official stating that the building and use comply with the provisions of this Zoning Code.
2. No change of use shall be made in any building or part thereof, now or hereafter erected or structurally altered, without a permit being issued therefor by the administrative official. No permit shall be issued to make a change unless the changes are in conformity with provisions of this Zoning Code.
3. Applications for certificates of occupancy shall be applied for coincidentally with the application for a building permit and shall be issued within ten (10) days after the lawful erection or alteration of the building is completed. A record of all certificates shall be kept on file in the office of the administrative official and copies shall be furnished on request to any person having a proprietary or tenancy interest in the building affected.
4. No permit for excavation for, or the erection or alteration of any building shall be issued before the application has been made for a certificate of occupancy, and no building or premises shall be occupied until that certificate is issued.
5. A certificate of nonconforming uses shall be required of all non-conforming uses. Application for a certificate for nonconforming uses shall be filed with the administrative official within twelve (12) months from the effective date of the ordinance codified herein, accompanied by affidavits of proof that such non-conforming use was not established in violation of previous ordinance.