 that Congress can't pass a law very vague about the details and then hand it off to some agency to then impose all sorts of rules and regulations on taxpayers, including businesses, when Congress was vague about it. The Supreme Court said Congress needs to be specific about what they want done. You can't just hand it over to some bureaucrat, and the bureaucrat decides what he or she wants to do, imposing all sorts of costly burdens on businesses and taxpayers. Uh-uh.