Which approach in 62.1 is described as the performance-based path to meeting IAQ goals?

• A. Minimum ventilation with no tests.
• B. The IAQ Procedure (IAQP) uses source control, filtration, and ventilation strategies to meet target IAQ.
• C. Target IAQ is always the same as outdoor air quality.
• D. Compliance is achieved by energy calculations only.

Answer: (B)

The performance-based path to meeting IAQ goals is the IAQ Procedure (IAQP). This approach lets you design how to meet the IAQ targets by combining control measures rather than sticking to fixed ventilation rates alone. It focuses on achieving the chosen IAQ goals through a mix of source control, filtration, and ventilation strategies, and it requires demonstrating that those goals are met—often through testing and verification or calculations that show the space delivers the target IAQ under expected use.

So, minimum ventilation with no tests isn’t a verification-based path to IAQ; you’d lack evidence that IAQ goals are met. The idea that target IAQ must always match outdoor air quality is incorrect because IAQP can maintain or improve IAQ beyond outdoor conditions through filtration and other controls. Compliance by energy calculations only isn’t the IAQP approach, since IAQP emphasizes actual IAQ verification, not just energy performance.