What mechanism is in place to ensure that review comments are based on the requirements that were in place at the time of registration? The LEED Certification Policy Manual, Section 6.2, states that GBCI requires compliance with the version of the reference guide, including all published addenda, that was in place at the time of project registration. However, we have noticed that reviewers often make comments based on addenda that were issued after the date of registration, and sometimes even after the date that documentation was submitted.