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Interpretation 90.1-2007-1 - October 1, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.2, regarding exceptions to the mandatory provisions for air leakage for fenestration and doors.)
Interpretation 90.1-2007-02 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.3.2, regarding HVAC system type and related performance parameters for the budget building design.)
Interpretation 90.1-2007-03 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.2.2, regarding unmet load hours for the proposed design and baseline building designs.)
Interpretation 90.1-2007-04 - March 5, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.5.1 and Table 9.5.1, regarding building are type(s) and gross floor area used to calculate the interior lighting power allowance by the Building Area Method)
Interpretation 90.1-2007-05 - January 23, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G3.1.1 and Tables G3.1 and G3.1.1.A, regarding how to apply Exceptions a, b, c, and d in determining Baseline System for large warehouses.)
Interpretation 90.1-2007-06 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.1.1, Exception (c), regarding the exception for health or safety lighting.)
Interpretation 90.1-2007-07 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 5.8.2.4, 5.8.2.5 and A8, regarding U-factor and Solar Heat Gain Coefficient for fenestration.)
Interpretation 90.1-2007-08 – October 21, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.4.1.1. and 9.4.1.2 and Appendix G (Table G3.1), regarding minimum lighting control requirements and Appendix G credit for lighting controls.)
Interpretation 90.1-2007-09 – January 22, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.1, regarding heat pump operation.)
Interpretation 90.1-2007-10 – March 30, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.4, regarding vestibules and Exceptions f and g.)
Interpretation 90.1-2007-11 – March 31, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Table G3.1.1A, regarding Baseline HVAC System Types.)
Interpretation 90.1-2007-12 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.1.2, Table 11.3.1, and Table G3.1, regarding baseline and proposed simulations for compliance.)
Interpretation 90.1-2007-13 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.5 and 9.6, Tables 9.5.1 and 9.6.1, regarding Baseline Lighting Power Density in Retail Banks.)
Interpretation 90.1-2007-14 – December 11, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.10, regarding Chilled-Water Pumps (System 7 & 8).)
Interpretation 90.1-2007-15 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1.A, regarding Baseline HVAC System Type.)
Interpretation 90.1-2007-16 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1A, regarding Baseline HVAC Systems for mixed use buildings.)
Interpretation 90.1-2007-17 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G1.2, G3.1.1 and G3.1.2.10, regarding the modeling of HRV in Baseline HVAC Systems.)
Interpretation 90.1-2007-18 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 6.4.3.9, regarding Ventilation Controls for High-Occupancy Areas.)
Interpretation 90.1-2007-19 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.2.2.3 Exception (a) and Section 9.6.2(a), regarding display or accent lighting in museums.)
Interpretation 90.1-2007-20 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.5, regarding facade lighting.)
Interpretation 90.1-2007-21 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.1.1 Exception c, regarding the exception where automatic lighting shutoff would endanger the safety or security of the room or building occupant(s).)
Interpretation 90.1-2007-22 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Appendix G, regarding building envelope values for the baseline case.)
Interpretation 90.1-2007-23 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 3, 8.4.1.1 and 8.4.1.2, regarding feeder conductor voltage drop.)
Interpretation 90.1-2007-24 – January 20, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5 and Tables G3.1 and 5.5, regarding Appendix G Modeling requirements for the proposed and baseline building.)
Interpretation 90.1-2007-25 – June 30, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 2.3c and 3, regarding the requirements for a greenhouse installed on the roof of a commercial building.)
Interpretation 90.1-2007-26 – June 26, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.2.4, regarding fan system operation.)
Interpretation 90.1-2007-27 – October 16, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section A6.3.2 and Table A6.3, regarding the F-factor for slab-on-grade floors.)
Interpretation 90.1-2007-28 – October 17, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1A, regarding the baseline system type and description.)
Interpretation 90.1-2007-29 – January 26, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Informative Appendix G, regarding baseline HVAC systems for mid- to high-rise multifamily residential corridor make-up air units.)
Interpretation 90.1-2007-30 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.12, regarding supply air temperature reset (Systems 5 through 8).)
Interpretation 90.1-2007-31 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 Exception b and Table 3.1.1B, regarding Baseline HVAC System Type & Description.)
Interpretation 90.1-2007-32 – June 25, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.1.1, regarding automatic lighting shutoff.)
Interpretation 90.1-2007-33 – April 20, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2007, Sections G3.1.3.5, G3.1.3.10, and G3.1.3.11, regarding chilled water / hot water loop control and pump control.)
Interpretation 90.1-2007-34 – April 20, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.6 and Table 9.6.1, regarding Lighting Power Densities –Space by Space Method of Calculating Interior Lighting Power Allowance.)
Interpretation 90.1-2007-35 – June 25, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2007, 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 90.1-2007-36 – January 21, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 5.4 and G1.2, regarding mandatory requirements for the Performance Method.)
Interpretation 90.1-2007-37 – April 7, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.4, regarding the distance between doors in a vestibule.)