; (2) in subparagraph (E), by inserting or after the semicolon; and (3) inserting after subparagraph (E) the following: (F) under section 27; . 7. Statute of limitations The Federal Trade Commission shall commence any enforcement proceeding described in section 27 of the Federal Trade Commission Act, as added by section 3, except for an action described in section 27(f)(2) of the Federal Trade Commission Act, not later than 6 years after the date on which the parties to the agreement file the Notice of Agreement as provided by section 1112(c)(2) and (d) of the Medicare Prescription Drug Improvement and Modernization Act of 2003 ( 21 U.S.C. 355 note). 8. Severability If any provision of this Act, an amendment made by this Act, or the application of such provision or amendment to any person or circumstance is held to be unconstitutional, the remainder of this Act, the amendments made by this Act, and the application of the provisions of such Act or amendments to any person or circumstance shall not be affected.