Questions have been asked about the impact on the HERS Index of the proposed Addendum E that amends Standard ANSI/RESNET/ANSI 301-2014 to incorporate index adjustment factors for size and configuration in Energy Rating Index calculations. This amendment is currently out for public comment. The public comment period closed on December 19, 2016. A webinar will take place on Tuesday, December 6th at 1 PM EST to explain the impact and answer questions. To register for the webinar click on https://attendee.gotowebinar.com/register/6488107443648528898 Click on Preliminary Draft Standard PDS-02 of BSR/RESNET/ICC 301-2014 Addendum E-201x to download the draft standard Current Energy Rating Index calculations result in a disparity in the rating index for large versus small dwellings similarly equipped and configured for energy efficiency. Larger dwellings have lower energy rating index values than smaller dwellings. The purpose of the amendment is to establish an index adjustment factor methodology that adjusts the rating index for size and configuration in order that similarly configured and equipped dwellings of different sizes and configurations will achieve an equivalent energy rating index. This webinar will be recording for view at a later time.