Prior to its invitation for bids, the public entity must prepare complete and accurate plans and specifications and estimates of cost, giving such directions as. This chapter sets forth requirements for the receipt and opening of formal and informal competitive bids.Sealed bidding is a method of contracting that employs competitive bids, public opening of bids, and awards. This chapter sets forth requirements for the receipt and opening of formal and informal competitive bids. Each deviation from the specifications must be stated in a letter, attached to the bidder's submittal. Instructions for completing this form are on the second page of this attachment. 12 - California Civil Rights Laws. The Price Agreement Conditions herein shall apply to discounts quoted. 3.