Building professionals who have achieved LEED® Professional Accreditation have demonstrated a thorough understanding of the principles and practices of green building and of the LEED® Rating System and have the knowledge and skills to successfully guide green building projects through the LEED® certification process. The Green Building Certification Institute (GBCI) website contains all the resources needed to achieve LEED® professional accreditation, which is now a tiered system including LEED Green Associate, LEED AP, and LEED Fellow – please visit their website to learn more about the accreditation process.