National Intellectual Property Law Enforcement Coordination Council (NIPLECC), which consists of the Office of the U.S. Trade Representative; the Department of Commerce, including the U.S. Patent and Trademark Office and the International Trade Administration; the Department of Homeland Security, which includes U.S. Customs and Border Protection and U.S. Immigration and Customs Enforcement; the Department of Justice; and the State Department. The U.S. Copyright Office serves in an advisory capacity.
In the NIPLECC' fifth annual report 'Report to the President and Congress on Coordination of Intellectual Property Enforcement and Protection' it is summarised what actions they have taken to increase IPR enforcement in China, see here (pdf).
Chapter VI Results of Coordination, page 31-34 starts with China: Concerted action to address a top priority.
However in Chapter VII a completer list of actions per government department is given.