The question "what does LEED stand for?" is a common question asked by first time home builders, designers, and developers. LEED is an abbreviation for Leadership in Energy and Environmental Design. Find out more about the LEED rating system.

Find out more about who started the LEED rating system and its current certifications and accreditation. Learn more about who takes the exam and why someone would think about obtaining a LEED AP.

The LEED 2009 rating system is not gone yet. You can still register buildings under the 2009 rating system. Find out the sunset dates and more.

Free LEED V4 Green Associate Exam

This is a Free LEED GA exam. The green associate exam is a tier 1 exam that is the first step in obtaining a candidates LEED AP. Test your knowledge on this free LEED green associate exam.

Rounding out the top countries in the world outside of the USA who promote LEED include: China, Canada, India and more. See what countries are surprisingly adopting LEED at lightning speeds. Complete 2014 rankings are as follows...

Petroleum coke, also known as “petcoke” or “ pet coke”, is the byproduct of the oil refinery coker unites during the cracking process. Two types of pet coke exists: fuel grade being high in sulfur/metals and raw coke commonly referred to as “green coke” meaning it has yet to be refined.

Learn the simple steps in becoming a LEED AP. We often get asked what it takes to become a LEED AP. In order to obtain your LEED AP credentials you must first...