I've broken it down into eight clear actionable steps that actually work in this video you'll learn the exact steps to write your proposal. Purchasing Recommendation and Comments: Purchasing concurs with department and recommends approval of requested action. This.No bidder shall submit morc than onc proposal for anyone piece of work outlined in the specifications and contract unless alternate bids are callcd for. The appropri- ate forms are to be filled out and submitted with the bid.