The corrections listed in this errata sheet apply to ANSI/ASHRAE/IES Standard 90.1-2010, SI edition. The first printing is identified on the outside back cover of the standard as "Product Code: 86269 4/11" and the second printing is identified as "Product Code: 86269 8/11 Errata noted in the list dated 07/20/2011 have been corrected." Shaded items have been added since the previously published errata sheet dated October 1, 2013 was distributed. Highlighted items apply only to the first printing and have already been incorporated into the second printing (included in 7/20/2011 errata).