The Community and Economic Development Department requests proposals and qualifications for a variety of department-specific projects throughout Riverside. All Prospective Vendors submitting a proposal must be listed on the.This AFH will cover the 15 cooperating cities in the County of Riverside and the unincorporated areas. In order to download the plans and specifications for RUSD project, you must first register as a plan holder. UNIFORM PUBLIC CONSTRUCTION COST ACCOUNTING ACT The County has adopted the.