U.S. production of CFCs stopped in 1996, although there was no hard cutoff date for manufacture or installation of CFC-based equipment. So if your building was built in the late 1990s or later, your HVAC systems are less likely to contain CFCs and you are

U.S. production of CFCs stopped in 1996, although there was no hard cutoff date for manufacture or installation of CFC-based equipment. So if your building was built in the late 1990s or later, your HVAC systems are less likely to contain CFCs and you are a step ahead with this prerequisite. However, it’s still a good idea to inventory all equipment to verify the refrigerant information, especially if you’re not completely sure. You’ll need that data to document the credit, anyway.

A new "landscape budget method" has been added for this credit through the November 2010 LEED addenda. This method could be very useful for teams that are close to meeting the buffer zone requirement, but having some difficulty. If a project is meeting 3

A new "landscape budget method" has been added for this credit through the November 2010 LEED addenda. This method could be very useful for teams that are close to meeting the buffer zone requirement, but having some difficulty. If a project is meeting 3 of 4 requirements but can't meet the fourth, it can do the following calculation to demonstrate compliance. As a baseline calculation, calculate the area of site disturbance that would take place if you met all four of the requirements exactly. Then, calculate the actual area of site disturbance.