If the Energy Star for Homes requirements change, do homes have to meet the updated requirements to satisfy EA 1? For example, the requirement in Florida recently changed from a HERS Index of 85 to a HERS Index of 77.
No - the prerequisite EA 1.1 in LEED for Homes Version 2008 is to meet the performance requirements of ENERGY STAR for Homes 2006. For example, in Florida the requirement for EA 1.1 will remain a HERS Index of 85. Homes in Florida that achieve a HERS Index lower than 85 are eligible to earn points under EA 1.2, regardless of whether they are participating in the new ENERGY STAR for Homes in Florida program.