• Add description, images, menus and links to your mega menu

  • A column with no settings can be used as a spacer

  • Link to your collections, sales and even external links

  • Add up to five columns

  • What is a Credit Interpretation Ruling (CIR) in LEED?

    A. Togay Koralturk A. Togay Koralturk Last updated on May 14, 2026 1 min read

    What is a Credit Interpretation Ruling (CIR) in LEED?

    After the project is registered at LEED Online, if a project team has questions about the technical details of a prerequisite, credit, or MPR, a CIR is issued to ask for clarification.

    Sometimes the reference guide will not be able to provide all the information regarding the achievement of a particular prerequisite/credit, and, in that case, the project team would submit a CIR through LEED Online and ask for a clarification. One CIR can be sent to clarify a single question, and project teams can submit an unlimited number of CIRs. A CIR has a fixed cost of $220 for both USGBC members and nonmembers.

    CIRs are administered by the GBCI, and the Credit Ruling Committee reviews the CIR in two to five weeks, concluding the process by clarifying the question asked.

    What Changes In LEED v5 & When Will The LEED Exams Will Be Based On LEED v5?

    What Changes In LEED v5 & When Will The LEED Exams Will Be Based On LEED v5?

    A. Togay Koralturk May 14, 2026 3 min read

    As building professionals prepare for this significant update, two critical questions arise: what are the major changes in LEED v5, and when will the LEED credential exams transition to the new version?

    LEED Exam Prep Storage And Collection Of Recyclables Prerequisite

    How LEED Handles Recyclables With The Storage And Collection Of Recyclables Prerequisite

    A. Togay Koralturk May 14, 2026 2 min read

    Waste is one of the primary burdens...
    LEED Heat Island Credit

    LEED Heat Island Reduction Credit Explained

    A. Togay Koralturk May 14, 2026 2 min read

    An example of the heat island effect would be the black asphalt surfaces radiating heat on a hot summer day...
    A. Togay Koralturk Author_Portrait

    About the Author

    A. Togay Koralturk

    A. Togay Koralturk is a globally recognized pioneer and educator in sustainable design and construction, as well as an international best-selling author of LEED study guides. His LEED publications have reached tens of thousands of professionals worldwide and have been widely adopted as primary course materials at leading universities across the United States. Holding a bachelor’s degree in civil engineering and a master’s degree in construction management from the University of Southern California, he began his career in Los Angeles, CA, earning his LEED AP® credential along the way in 2008. He has helped numerous projects pursue LEED certification worldwide and has educated thousands of professionals.