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![Credit: Ruin Raider via Flickr Credit: Ruin Raider via Flickr](http://us.usgbc.org/sites/default/files/4310264824_e0706ab9de_b.jpg?1365010542)
USGBC has just announced that it is establishing a group of 11 to 15 volunteers to serve as a working group that will determine how to best implement Option 3 of the Material Ingredients credit proposed for LEED v4. The call for self-nominations of applicants posted April 1 to the volunteer opportunities page on the USGBC website, and USGBC will accept applications through May 1.
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