When I went in to make my comments the other day, I got kicked out before I could finish and since it is impossible to go back and edit on the USGBC website, I will complete my comments here.

Please define in the glossary the following terms: life-cycle analysis, environmental product declarations,cradle to gate, program operator and third party certification with external verification (I thought third party verification was external verification.) The current definition of verification refers to M&V.

Please improve the credit language to clarify the distinctions between the three options in Option I so that is clear to those unfamiliar with this jargon what the differences are.

The use of the words multi-attribute optimization in Option 2 is very confusing. You should define it if you are going to use it, but in general, the word optimize is overused in LEED v4. Simpler language like improve or improvement would be better

50% seems a very high level given that is not clear that these certifications exist at the moment. Why did the USGBC make this 50% and the option that includes recycled content only 25%

We have not been able to find certifications that "verify impact below industry average" for the credit criteria. It seems premature to vote in favor of a system that relies on information that does not currently exist in the marketplace?

The language relating to valuation factor is very confusing. It doesn't help that Option 1 is number of products and Option 2 is percentage by cost.