The language for LEED 2009 differs from past versions - it seems to indicate that it won't just accept the default SRI values for concrete - that the mix being used must have been tested at somepoint whether on a previous project or for the current one: “teams do not need to provide project specific data measuring SRI values for new concrete. Documentation certifying that the concrete mix used for a project is equivalent to a previously used and tested mix is acceptable.” Comments?