Buried in the 416-page preamble of its greenhouse gas "tailoring" rule, EPA makes plain that the owner of the local Dunkin Donuts should be very concerned. While EPA proposes to exempt such a facility from draconian greenhouse gas permitting obligations under the Clean Air Act, it also notes that this GHG exemption does not apply at the state level. Furthermore, the exemption is only temporary; EPA says that after studying the issue for 5 years, it could very well devise a regulatory scheme that covers greenhouse gas emissions from pizza parlors, nursing homes, and apartment buildings.