Expenditures of city funds of $25 or less may be made by check or by cash from petty cash for city expenditures without prior order of the Mayor by any of the following persons:
(A) The Mayor;
(B) The Clerk;
(C) The Treasurer;
(D) The Deputy Clerk;
(E) The Deputy Treasurer; and
(F) One regular full time clerical employee designated by the Mayor.