- A document describing an addition, change, correction, or modification to contract documents. An addendum is issued by the design professional during the bidding period or prior to the award of contract, and is the primary method of informing bidders of modifications to the work during the bidding process. addenda become part of the contract documents.
Information & Library Science
- noun something that is or has been added, e.g. to a contract
- noun an extra section of a book or magazine, such as an appendix