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Interpretation 90.1-2013-1 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 5.5.4.6, Exception 5, relating to a definition for side lighting effective aperture.)
Interpretation 90.1-2013-2 – October 17, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections G3.1.2.1 and G3.1.2.10 and Tables 6.8.1-2 through 6.8.1-4, relating to baseline fan power used to determine minimum efficiency EER, SEER, COP, and HSPF.)
Interpretation 90.1-2013-3 – October 18, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 8.4.2, relating to automatic receptacle control.)
Interpretation 90.1-2013-4 – January 24, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 6.5.3.2.1 and 6.5.3.5, relating to fan airflow control and fractional horsepower motors.)
Interpretation 90.1-2013-5 – April 18, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.5.4.6, relating to pipe sizing for district energy systems.)
Interpretation 90.1-2013-6 – October 24, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.5.2.1, relating to maximum allowable reheat percentage.)
Interpretation 90.1-2013-7 – October 24, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.5.2.1, relating to applicability at minimum outside air damper position.)
Interpretation 90.1-2013-8 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 9.4.2 and Table 9.4.2-2, relating to exterior building lighting power and building facades.)
Interpretation 90.1-2013-9 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 9.1.2, relating to lighting alterations.)
Interpretation 90.1-2013-10 – June 27, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.4.3.4 relating to motorized dampers and damper leakage.)
Interpretation 90.1-2013-11 – January 29, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.5.3.1.2, relating to motor nameplate horsepower.)
Interpretation 90.1-2013-12 – January 29, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.4.3.1.2, relating to dead band zone thermostat controls.)
Interpretation 90.1-2013-13 – June 25, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 6.5.3.1.1 and 6.5.3.1.2, regarding Nameplate Motor Horsepower requirements when no nameplate Motor Power is available on the motor.)
Interpretation 90.1-2013-14 – October 21, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 6.4.4.2.1, regarding duct sealing)
Interpretation 90.1-2013-15 – October 21, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 6.5.3.1.3, regarding fan efficiency.)
Interpretation 90.1-2013-16 – January 21, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 11.4.3.2 and Table 11.5.1, regarding energy modeling cogeneration systems.)
Interpretation 90.1-2013-17 – April 7, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 6.5.3.1.3, regarding fan efficiency.)
Interpretation 90.1-2013-18 – October 12, 2019 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 9.4.1.1 and 9.6.1, regarding controls for spaces broken up into smaller subspaces.)
Interpretation 90.1-2013-19 – October 12, 2019 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 8.1.4 and 8.4.2, regarding application of automatic receptacle control to alterations.)
Interpretation 90.1-2013-20 – October 16, 2020 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 5.4.3.4 Exception 6, regarding entrance vestibules.)
Interpretation 90.1-2013-21 – March 24, 2021 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 8.4.2 and Table 9.6.1, regarding automatic receptacle control at workstations in spaces otherwise not required to be furnished with occupancy sensors under ASHRAE/IES 90.1.)
Interpretation 90.1-2013-22 – March 24, 2021 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 5.5.4.3 and 5.8.2.3, regarding U-factor of the fenestration for the actual fenestration size versus standard reference size per NFRC 100.)
Interpretation 90.1-2013-23 – June 24, 2023 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Section 8.4.3.1, regarding monitoring of electrical energy types not falling under the categories encompassed by items (b) through (e).)
Interpretation 90.1-2013-24 – June 24, 2023 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2013, Sections 3, 9.4.1.1 and 9.6.1, regarding automatic daylighting control implications of subspaces of the same space type (but with independent functions) within a larger, uninterrupted space.)