Which statement best describes the Basis of Design content?

• A. A Project Budget
• B. A Document that records the concepts, calculations, decisions, and product selections used to meet the Owner's Project Requirements (OPR) and to satisfy applicable regulatory requirements, standards, and guidelines
• C. A Construction Safety Plan
• D. A Maintenance Manual

Answer: (B)

Basis of Design is the formal record that links the Owner’s Project Requirements to the actual design decisions. It captures the concepts, calculations, decisions, and product selections used to meet the OPR and to satisfy applicable regulatory requirements, standards, and guidelines. This document provides the design rationale and traceability so reviewers, contractors, and facility operators understand why specific systems and components were chosen and how they meet the owner’s goals.

The other documents serve different purposes: a project budget handles financial planning, a Construction Safety Plan focuses on safety during construction, and a Maintenance Manual addresses operations and upkeep after handover.