(A) When the notice or order of vacation follows a notice or order of abatement, as provided in § 93.17, this notice or order of vacation shall not be enforced as provided in this chapter, unless the notice or order of abatement specifies a time when the person so notified or ordered may appear before the Board or officer issuing same to show cause why the order or notice of vacation should not be issued, and unless the Board (or a majority thereof) or officer is present at its or his or her office at the time so specified; such time to be not less than 24 hours after the service of the notice or order.
(B) When the notice or order of vacation is issued as provided in § 93.17 without a previous notice or order of abatement, this notice or order of vacation shall not be enforced as provided in this chapter unless it specifies a time, not less than five days after the service thereof, when the person so notified or ordered may appear before the Board issuing same to show cause why the notice or order should not be enforced, and the Board or a majority thereof is present at its office at the time so specified.
(C) However, when, in the opinion of at least four-fifths of the members of the Board, an emergency exists which requires, for the protection of the health of occupants, the vacation of the building or portion thereof without a delay of five days, then no such fixing of a time for hearing shall be required.