Comparative prices shall be obtained for the purchase or sale in
an amount not in excess of $5,000 of all materials, supplies and public
improvements, except:
For purchases in excess of $5,000, sealed bids shall be obtained
and shall be approved by the City Council, except that where the City
Council shall determine that the public interest will be best served
by joint purchase with or purchase from another unit of government.
Any contract or agreement in an amount of $10,000 or more, made with
form or terms other than the standard City purchase order form, shall,
before execution, be submitted to the attorney and his opinion obtained
with respect to its form and legality.
Before any contract, agreement, or purchase order which obligates
the City to pay an amount in excess of $2,500 is executed, the Treasurer
of the City shall first verify that a budgeted appropriation has been
made for the payment thereof, or that sufficient funds will be available
if it be for a purpose being financed by the issuance of bonds, by
special assessments, or for some other purpose being chargeable to
a budget appropriation.