ii Volume 1, Issue 1October 2016 LETTER FROM THE SOCIETY OF PRACTITIONERS OF HEALTH IMPACT ASSESSMENT Welcome to the first issue of CHIA! SOPHIA is thrilled to partner with Indiana University (IU) to produce this important resource for the Health Impact Assessment (HIA) field. CHIA was created in response to an important need identified by HIA practitioners to have a platform to both share their work in a new way and learn. As the HIA field continues to grow and reinvent itself, CHIA will serve as a compendium of evidence-based approaches to conducting HIAs. The publication of CHIA provides an excellent opportunity for SOPHIA to further our mission of providing leadership and promoting excellence in the field of HIA. IU has been working hard for almost two years to produce this resource, and SO- PHIA has been supporting IU by recruiting our members to serve as editorial board members and reviewers. Like many HIA field endeavors, the result is a product that reflects the current state of the field, and provides yet another opportunity for the HIA community to come together into the future. We encourage all SOPHIA members to take advantage of this incredible opportunity and contribute to the HIA community of practice. Tatiana Lin, SOPHIA President Nancy Goff, SOPHIA Director