The Green Guide for Health Care is a voluntary, self-certifying sustainable design toolkit tailored to the health care industry, offering tips and tools for adding healing design features, energy and water efficiency strategies, and safer materials to the health care setting. To date, more than 10,500 people have downloaded the Green Guide, and 115 projects have registered in the Green Guide Pilot Program. The pilot projects represent more than 30 million square feet of construction by 100 health organizations in 31 states, four Canadian provinces, and China, Guatemala, Malaysia, the Philippines, and Poland. The third release since its inception in December 2003, Version 2.2 encompasses the most significant revision of the Construction section of the Green Guide to date.