2005 California Government Code Sections 54201-54205 Agencies

54201.  As used in this article, the term "local agency" means every
city, county, city and county, district, or any other local
governmental body or corporation empowered to expend public funds for
the acquisition of property.
54202.  Every local agency shall adopt policies and procedures,
including bidding regulations, governing purchases of supplies and
equipment by the local agency.  Purchases of supplies and equipment
by the local agency shall be in accordance with said duly adopted
policies and in accordance with all provisions of law governing same.
  No policy, procedure, or regulation shall be adopted which is
inconsistent or in conflict with statute.
54203.  If the local agency is a city, a county, or a city and
county, the policies provided for in Section 54202 shall be adopted
by ordinance in the manner provided by law or by charter, as the case
may be.
54204.  If the local agency is other than a city, county, or city
and county, the policies provided for in Section 54202 shall be
adopted by means of a written rule or regulation, copies of which
shall be available for public distribution.
54205.  Any local agency may request the Department of General
Services to make purchases of materials, equipment, or supplies on
its behalf in accordance with Section 10298 of the Public Contract
Code.