in protecting the lives of unborn children from the stage of viability, and neither governmental interest is intended to replace the other. 3. Pain-capable unborn child protection (a) In general Chapter 74 of title 18, United States Code, is amended by inserting after section 1531 the following: 1532. Pain-capable unborn child protection (a) Unlawful conduct Notwithstanding any other provision of law, it shall be unlawful for any person to perform an abortion or attempt to do so, unless in conformity with the requirements set forth in subsection (b). (b) Requirements for Abortions (1) Assessment of the age of the unborn child The physician performing or attempting the abortion shall first make a determination of the probable post-fertilization age of the unborn child or reasonably rely upon such a determination made by another physician. In making such a determination, the physician shall make such inquiries of the pregnant woman and perform or cause to be performed such medical examinations and tests as a reasonably prudent physician, knowledgeable about the case and the medical conditions involved, would consider necessary to make an accurate determination of post-fertilization age. (2) Prohibition on performance of certain abortions (A) Generally for unborn children 20 weeks or older Except as provided in subparagraph (B), the abortion shall not be performed or attempted, if the probable post-fertilization age, as determined under paragraph (1), of the unborn child is 20 weeks or greater. (B) Exceptions Subparagraph (A) does not apply if— (i) in reasonable medical judgment, the abortion is necessary to save the life of a pregnant woman whose life is endangered by a physical disorder, physical illness, or physical injury, including a life-endangering physical condition caused by or arising from the pregnancy itself, but not including psychological or emotional conditions