LEED Professional Accreditation distinguishes building professionals with an advanced depth of knowledge and skills to successfully steward the LEED certification process. LEED Accredited Professionals (LEED APs) have demonstrated a thorough understanding of green building practices and principles and the LEED Rating System. More than 75,000 people have earned the credential since the Professional Accreditation program was launched in 2001.

The U.S. Green Building Council is the nation's foremost coalition of leaders from every sector of the building industry working to promote buildings that are environmentally responsible, profitable and healthy places to live and work.

The National Association of Home Builders' Certified Green Professional™ designation recognizes builders, remodelers and other industry professionals who incorporate green building principles into homes - without driving up the cost of construction. Class work leading to the designation provides a solid background in green building methods, as well as the tools to reach consumers, from the organization leading the charge to provide market-driven green building solutions to the home building industry.