; application of amendments (a) Effective date Except as provided in subsection (b), this Act and the amendments made by this Act shall take effect on the 1st day of the 1st month that begins more than 180 days after the date of the enactment of this Act. (b) Application of amendments The amendments made by this Act shall apply only with respect to cases commenced under title 11 of the United States Code on or after the effective date of this Act.