The invitation to bid includes every document furnished to prospective bidders, whether attached or incorporated by reference. The package usually opens with the bidding requirements: the advertisement, instructions to bidders, and bid forms. Contract conditions and technical specifications follow. Drawings and reference data are attached at the end.
Public works packages often run hundreds of pages, and a missed requirement can make a bid nonresponsive. Nonlinear reads the package and pulls due dates, bonding, insurance, location, and liquidated damages so estimators can price from the terms instead of the full PDF.

