I'm working on a LEED-S 2007 project that is pursuing this credit but I have a question about the requirements. The 2007 rating system requirement says "Also design classrooms and other core learning spaces to meet the STC requirements, excepting windows, which must meet an STC rating of at least 35" in addition to the building shell and classroom partitions.

I checked the 2007 rating system errata but didn't see the change there. Does anyone know if the errata for this exists? If not, are we able to use the 2009 requirements instead of the 2007 requirements without upgrading the project to v3?

Thanks for your help!