Is there a definition of nightime hours for internally illuminated signage? I would assume midnight to 6 AM as in the excemption for facades but I can't find any statement.

Does anyone know if there is an alternate strategy for lighting quality that can look at Circadian Rhythm and designing to that? Thanks

In the site Management Policy (and SSc5 Credit) soil testing requirement have been added since 2009.

In relation to the Educational Session on EPD that you lead through USGBC, can you please tell me if the EPD compliant with LEEDv4 that you cover through this course, requires that the program unde

Our facility has office staff who work Monday-Friday, and production staff who work Monday-Thursday...

I am currently analyzing and attempting to achieve the Campus credit for Rainwater Management for a university that is projected to change in the following 5-10 years.

Hi all, I am working on a project located close to the Bay.

Hi all, We are looking to certify a new building on a higher-ed campus that will be sharing HVAC systems with an existing building. The existing building will likely not pursue certifications.

The v4 light pollution requirement does not specifically mention that a project must "only light areas required for safety and comfort" as is stated in the v2009 credit language.

In the LEED calculator, can we exclude all irrigation demand within the establishment period?