The California Department of Technology (CDT) Service Level Agreement (SLA) provides standards, roles, responsibilities, and expectations for all services. Technical Services Agreement.Call us at 5103439841 or contact us online to set up your planned service agreement today. Contra Costa County. INTERAGENCY AGREEMENT. Number. 23-551-4. Visual Lease's Service Level Agreement (SLA) governs its responsibilities to its hosted customers in the Production environment. Welcome to Contra Costa County's on-line application process! Office and Technical Services Unit--refer to Supplement 4. The support period of the Maintenance Level Agreement is provided in the table below: SERVICES. START. END.