Greetings,

i would like to ask about the April 2023 Update to the Regional ACP ID# 100002473 regarding Low Emitting materials:

"Laboratories that conduct the tests must be...

Why is "French...

Hi all,

I'm looking at this past thread on the v4 Low-Emitting credit and how to account for exterior doors: ...

Does anyone have access to a v4.1 low-emitting calculator? Since some categories are now quantified by cost, volume, or square footage it warrants a different calculator.

Is sheet membrane waterproofing/crack isolation considered an underlayment that needs to be documented in the Low-Emitting Materials Flooring category?  I have used troweled products that are...

For the CDPH Standard Method v1.2-2017 evaluation In V4 you had to specify the TVOC ranges: 0.5 mg/m3 or less, between 0.5 and 5 mg/m3, or 5 mg/m3 or more. In V4.1 it says, "The statement of...

Hello-

We are using a carpet with GUT cerfication (Gemeinschaft umweltfreundlicher Teppichboden).  Has that been sucessfully used as equal to...

My project is registered as v4 and is using the v4.1 credit substitution for Low-Emitting Materials. I clicked the blue substitution button and the v4.1 form sucessfully populated just fine, but...

The product that our sub uses is "Diatrex Transparent Knife Grade" & Axson Cream Hardener"  for stone countertop seams and it does not meet the limits. Any suggestions of products or how to...

Question on how to classify a Wood Ceiling product. We have a suspended...