After weeks of negotiation with House committee members over what language would be included in the American Clean Energy and Security Act of 2009 when it was formally introduced, committee chair Henry Waxman, D-Calif., and his cosponsor Rep. Ed Markey, D-Mass., who chairs the Subcommittee on Energy and Environment, have released the final language of the groundbreaking legislation and began marathon markup sessions on the bill May 18.