The Community and Economic Development Department requests proposals and qualifications for a variety of department-specific projects throughout Riverside. Whether you are a new vendor with RCTC or an existing vendor, you must register your firm in order to receive contracting notifications.We suggest that you look to the next Request for Qualifications, Request for Proposals, or Notice Inviting. Notice of Inviting Bids. Requested bid contract terms are: 5 year, 3 year, 1 year and month to month. 2. Page 2: Terms and Conditions Acknowledgement Section 2.