The vendor must download the Vendor Agreement from the attachment tab, fill in the requested information and upload the completed agreement. All Prospective Vendors submitting a proposal must be listed on the.This guide is modeled after the UC Berkeley Guide to Contracting (2015) with updates specific to the UC Riverside (UCR) contracting environment. All Prospective Vendors submitting a proposal must be subscribed to this RFP on the City's bidding website prior to the due date and time.