21 GCA § 66304: Same: Changes.

(a) No change of occupancy shall be made in a building or structure hereafter erected or altered that is not consistent with the last issued certificate of occupancy, unless a new certificate of occupancy is secured. No change of occupancy that would bring a building or structure under some special provisions of this Chapter shall be made, unless the building official finds, upon inspection, that such building or structure conforms substantially to the provisions of law with respect to the proposed new occupancy, and issues a certificate of occupancy therefor.

(b) The occupancy of a building shall not be deemed to have been changed because of a temporary vacancy or change of ownership or tenancy. The re-establishment in a building, after a change of occupancy has been made, of a prior use that would not have been permitted in a new building of the same type of construction, is prohibited. The change from a specifically prohibited use to another specifically prohibited use shall not be made.