The Indoor airPLUS Construction Specifications Version 1 (Rev. 02) may be used by builders and Raters immediately.
Homes permitted on or after July 1, 2013 must use the Revision 1 or Revision 2 Construction Specifications and Verification Checklist. Raters should complete only one Indoor airPLUS Verification Checklist per home.
Download the Indoor airPLUS Version 1 (Rev. 02) Construction Specifications -- http://www.epa.gov/indoorairplus/construction_specifications.html#Download.