Hello,

Can someone explain exactly what is required under the first option in Option 1? Is this a self certification utilizing GreenScreen or must this be third party?

Does the steel stud count as different material than the track?

Can we value one and the same product multiple times for different credits and credit options as far as the Building product disclosure and optimization credits is concerned.

A discussion on the BPDO-EPD forum (http://www.leeduser.com/comment/redirect/66396) has started me thinking about how to treat materials that could fall on a Credit tipping point depending on wheth

It doesn't appear USGBC has updated their tracking tool/materials calculator to account for Option 3 yet, or have you seen an updated resource?

With its April 2017 LEED Addenda USGBC continues to add to the list of certifications and declarations that qualify for Option 1—Material Ingredient Reporting of the 

The actual points won't be achievable for a few months, but USGBC has released implmentation guidance. Please see the details here:

Hi there! Some Cradle to Cradle (C2C) certifications notes exclusions.

The credit language here says "For credit achievement calculation, the value of individual products compliant with either option 2 or 3 can be combined to reach the 25% threshold but products compl