What is the importance of documentation in 62.1 compliance?

• A. It is optional.
• B. It records design calculations, ventilation rates, filtration specs, control strategies, and verification results.
• C. It is used only for energy modeling.
• D. It is required for healthcare facilities.

Answer: (B)

Documentation is the record that proves a building actually meets ASHRAE 62.1 requirements. It shows that the required ventilation rates, filtration specifications, and control strategies were not only planned but properly implemented and verified. The main purpose is to provide a traceable, auditable trail—from design calculations and system specifications to commissioning tests and ongoing verification—that the indoor air quality meets the standard for the specific space. This makes it possible to defend compliance during reviews, support ongoing operations, and guide future changes or troubleshooting. While energy modeling can be part of the process, the documentation itself covers a broader scope, tying together the design, installation, testing, and verification activities. And this requirement applies to a wide range of facilities, not just healthcare.