; (7) the term physician means a doctor of medicine legally authorized to practice medicine by the State in which such doctor practices medicine, or any other person legally empowered under State law to perform an abortion; and (8) the term State includes the District of Columbia and any commonwealth, possession, or other territory of the United States, and any Indian tribe or reservation. . 4. Clerical amendment The table of chapters at the beginning of part I of title 18, United States Code, is amended by inserting after the item relating to chapter 117 the following new items: 117A. Transportation of minors in circumvention of certain laws relating to abortion 2431 117B. Child interstate abortion notification 2435 . 5. Severability and effective date (a) The provisions of this Act shall be severable. If any provision of this Act, or any application thereof, is found unconstitutional, that finding shall not affect any provision or application of the Act not so adjudicated. (b) This Act and the amendments made by this Act shall take effect 45 days after the date of enactment of this Act.