LEEDuser Basic Member
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Green Commons, LLC
LEEDuser Expert
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If you look at the 3rd item in the "Design Development" phase of the "Checklists" tab above, you'll see a list of MasterFormat sections that should be included, per the LEED BD&C Reference Guide. They don't list Division 31, but they DO list much of Division 32, and my reading of MF 04 suggests that the gravel you're talking about might well fit in those parts of Division 32.