There is no 62MZ calculator in version 4 LEED here:
http://cn.usgbc.org/resources/minimum-indoor-air-quality-performance-cal...
Is there a new 62MZ calculator in version 4 LEED? or where to find it ?
Since the LEED 2009 calculator doesn't work any more, we need to find it to calculate multi-zone Minimum Indoor Air Quality in current project.