It shall be unlawful to use any part of any building or structure hereafter erected, until a certificate of occupancy shall have been issued therefor by the Inspector of Buildings, showing that the proposed use and construction are in accordance with this ordinance. No permit for excavation or construction shall be issued by the Inspector until he is satisfied that the plans and intended use of the building conform to the provisions of this ordinance, when required in accordance with the Massachusetts State Building Code.

No application for a certificate of occupancy shall be received by the Inspector of Buildings, relating to the manufacturing or processing of anything containing animal, poultry or vegetable matter, unless such application shall contain the written approval of the Board of Health.