What is an Addendum?

• A. A written or graphic document, issued by the architect during the bid period prior to the execution of the contract, that modifies or interprets the bidding documents by addition, deletion, clarification or correction
• B. A contract where the owner contracts with multiple prime contractors
• C. A document setting the building code requirements
• D. A plan for the landscape design

Answer: (B)

An addendum is a written or graphic document issued during the bid period by the architect to modify or interpret the bidding documents. It can add, delete, clarify, or correct information in the bid package so all bidders have a consistent understanding before the contract is signed. Addenda are issued before the contract execution and become part of the contract documents, guiding bidders as they prepare their proposals.

This concept is distinct from other items like a contract with multiple prime contractors (a procurement approach), building code requirements, or a landscape design plan, which are not about altering the bidding documents.