The notices, complaints and orders issued hereunder shall be served upon persons either personally or by certified mail, return receipt requested, but if the whereabouts of such persons are unknown and the same cannot be ascertained by the City Building Inspector in the exercise of reasonable diligence, and the said officer shall make an affidavit to that effect, then the serving of such complaint or order upon such persons may be made by publishing the same for 2 consecutive weeks in a newspaper printed and published in the city, and a copy of such complaint or order shall be posted in a conspicuous place on the premises affected by the complaint.
(Ord. 1138, passed 7-13-1987)