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Interpretation 170-2021-1 – September 16, 2021 (Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2021, Section 3, regarding definition alignment with FGI Guidelines.)
Interpretation 170-2021-2 – February 1, 2022 (Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2017, Table 6-2, regarding the definition and requirements for “procedure room”.)
Interpretation 170-2021-3 – February 1, 2022 (Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2021, Section 7.2.1 and Table 7.1, regarding exhaust air requirements when Airborne Infectious Isolation (AII) room not used for airborne infection isolation.)
Interpretation 170-2021-4 – February 6, 2023 (Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2021, Sections 7 and 8; Tables 6-2, 7-1 and 8-1; and Addendum d, regarding Class 2 imaging rooms.)
Interpretation 170-2021-5 – January 23, 2024 (Refers to the requirements in ANSI/ASHRAE/ASHE Standard 170-2021, Sections 6.7.2.a and 7.1.a.5, Tables 6-2 and 7-1, regarding supply air outlet requirement on recirculating room HVAC units.)