Is Acacia tress a rapid renewable material?

Hi James, There is no official list. Any biobased material that otherwise meets the requirements should be accepted. If you can get formal documentation from your supplier about the less-than-10-years cycle, than you should be OK. When the rules were written, 10 years was picked in part to exclude any wood products, since those are covered separately under Credit 7. But that's not how the requirement was written.As a best practice (not a LEED requirement) you might want to see if you can get the Acacia from an FSC-certified source. Then you can also claim credit for it under Credit 7.