The LEED Steering Committee (LSC) has approved a PIEACP for EQ Prerequisite 3: Minimum Acoustical Performance (PIEACP stands for Performance/Intent Equivalent Alternative Compliance Path.) The alternate compliance paths listed in the PIEACP document are not intended to replace any of the existing compliance paths currently available. Rather, these methods offer alternatives to the currently available paths. Current paths shall remain in place as accepted approaches for compliance with the acoustics prerequisite. Please see the PIEACP document located on the usgbc.org website here for the PIEACP language: http://www.usgbc.org/ShowFile.aspx?DocumentID=4061 Applicable Internationally.