The corrections listed in this errata sheet apply to ANSI/ASHRAE/IESNA Standard 90.1-2007, IP edition The first printing is identified on the outside back cover of the standard as "86147 PC 12/07", the second printing is identified on the outside back cover as "86147 PC 11/08 Errata noted in list dated 10/10/2008 have been incorporated.", the third printing is identified on the outside back cover as "Product Code: 86147 10/09 Errata noted in the list dated 9/24/09 have been corrected.", and the fourth printing is identified as "Product Code: 86147 05/10 Errata noted in the list dated 3/8/10 have been corrected." The shaded item has been added since the previously published errata sheet dated August 17, 2010 was distributed.