Assessing the health-related characteristics of building materials is data-intensive. And there are a variety of complimentary systems for reporting on material health, including Declare, HPD, Cradle-to-Cradle, GreenScreen, and Pharos. A collaborative effort among the developers of these systems was launched during 2013 to advance voluntary data and information harmonization among them. Goals include increased efficiency of each and clear comparability of their results, with the ultimate intent that building materials protect and promote human health. Leaders from the programs provide an up-to-the-minute inside look at recent progress from the harmonization effort, and a candid look at where we’re headed.