1 May Florida HVAC change?

A Realtor asked me if I knew about the new HVAC rule starting 1 May. She said her home inspector told her about a new rule concerning the distribution, windows, ceiling, ect and if the house didn’t pass then the AC would have to be replaced. She didn’t have many solid facts so I’m kind of confused where to research her question… Any idea of what she might be referring to?

That kinda sounds like a turd in the punch bowl. I am going to tell some home owner he has to change his A/C because of XXXXXX???

She might be referring to the energy code of 2010.