Hi! Has anyone encountered a product that complies with more than one compliant MRc4 Methodologies? We've purchased a product that has a Declare (3rd party reviewed) certificate and a Cradle-to-...

Hi LEED user,

I am reviweing an HPD V2.2 for a suspended ceiling system and it is declared only at 100ppm threshold level for Basic Method reporting format. Everything else is checked at...

Previous versions of LEED stipulated the Material and Resource Credits only applied to Divisions 2-10 products. 

Under LEEDv4, do CSI Divisions 21 – Fire Suppression, 22 – Plumbing, 23 –...

Is GreenGuard Gold considered an "approved USGBC program"? or is GreenGuard Gold compliant with GreenScreen?

referenced by Charline is not sufficient at only 1,000 ppm. Please search the LEEDuser forum for more on this. I think this question may have been a duplicate which was answered previously. Log in or register...

Hello everyone, I am a project manager and we are going out with an ITT soon. The building is aiming for a LEED silver rating and we would like to inform the contractors that they should keep...

I have two questions about MRc4- Material Ingredients. Is a CASRN the same thing as CAS Number? Also, has anyone used the CAS number from a SDS as credit compliance for this credit?

In safety data sheets the calcium diformat is labeled with REACH registration number 01-2119486476-24-xxxx

Therefore I would think that it is included in the REACH lists but in the REACH...

We've gotten a response from reviewers that HPDs we've submitted "do not include compliant lists of materials ingredients" and then they call out CASRN 65997-19-5, which is steel in our USG...

I am a master's student at State University of New York College of Environmental Science and Forestry doing my thesis in Barriers in implementing material transparency in LEED v4 projects.