4.22 Certification for Bidding. Hold Harmless Clause (Specifically naming the County of Riverside).The bid items should be only for the public works improvements. Before bidding, read bid invitations and requests for quotations carefully, including the fine print, to be sure you can comply with all requirements. Bids must be full and complete. All bids shall be submitted sealed to the City Official designated in the invitation to bid and shall be identified as a "bid" on the envelope. 3.