The building official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit; provided, that such portion or portions shall be occupied safely. The building official shall set a time period during which the temporary certificate of occupancy is valid is hereby amended to read:

The building official is authorized to issue a temporary certificate of occupancy. Only when all other agencies and departments have approved the final can the permit holder or authorize agent petition in writing request a temporary certificate of occupancy for 30 days, 60 days, but no longer than 90 days. The building official shall review the request for approval or changes to be made.