NOTE: All documents linked from this page are in 
PDF-format.
Interpretation 62.1-2019-1 – November 19, 2020 (Refers to the requirements presented in ANSI/ASHRAE Standard 62.1-2019, Sections 3 and 6 and Table 6-1, regarding BSL 2-4 agents and the viruses, bacteria, and other infectious contagions.)
Interpretation 62.1-2019-2 – January 19, 2021 (Refers to the requirements presented in ANSI/ASHRAE Standard 62.1-2019, Section 5.10, regarding controls.)
Interpretation 62.1-2019-3 – February 4, 2023 (Refers to the requirements presented in ANSI/ASHRAE Standard 62.1-2019, Section 5.13.2, regarding pressure drop restriction in cooling coil selection.)
Interpretation 62.1-2019-4 – February 4, 2023 (Refers to the requirements presented in ANSI/ASHRAE Standard 62.1-2019, Section 6.2.1.2 and Table 6-4, regarding Zone Air Distribution Effectiveness.)