(Amended by Ordinance Nos. 136544, 169321 and 173369, effective May 12, 1999.)  Should an extraordinary condition arise not otherwise provided for by this Chapter, the Commissioner-In-Charge of the department requesting the issuance of an emergency check, or any person in such department so authorized by the Commissioner-In-Charge in writing filed with the City Auditor, shall present a signed requisition, accompanied by a statement in writing giving his/her reasons for so doing, which shall be authorization for issuance of an emergency check.  The Commissioner-In-Charge, the Mayor and the City Auditor shall approve emergency checks for extraordinary circumstances provided for in this Section.