Before a contractor can price your project, they need a complete, organized set of documents that tells them exactly what they're buying and how the selection process works. That's the bid package. Get it right and bids are comparable, fair, and legally solid. Get it wrong and you're dealing with bid protests, invalid bids, or ambiguity that haunts you through construction.

The bid package has two main categories. Bidding requirements are the administrative layer: the invitation to bid, instructions to bidders, bid form, and bid security requirements. These documents govern the process of solicitation and selection. They don't become part of the construction contract.

Then there are the contract documents: drawings, specifications, addenda, general conditions, supplementary conditions. These DO become part of the contract and govern the construction work itself.

This distinction trips up candidates constantly. The Instructions to Bidders (AIA A701) tells bidders how to prepare and submit their bids. It's not part of the construction contract. The addenda modifying the drawings and specifications ARE contract documents. The bid form is not a contract; the executed agreement is.

Document control is the architect's housekeeping discipline during bidding. Every bidder must receive exactly the same set of documents, every question must be answered by addendum (not by phone), and every addendum must reach every registered bidder before the bid deadline. A document control failure can invalidate the entire bidding process and expose the owner to legal challenges.