Human Cloning Prohibition Act of 2003

Human Cloning Prohibition Act of 2003 - Amends the Public Health Service Act to prohibit any person or entity, in or affecting interstate commerce, from knowingly: (1) performing or attempting to perform human cloning; (2) participating in such an attempt; (3) shipping or receiving an embryo produced by human cloning or any product derived from such an embryo; or (4) importing such an embryo.

Sets forth criminal and civil penalties.

Provides that nothing in this Act restricts areas of scientific research not specifically prohibited above, including research in the use of nuclear transfer or other cloning techniques to produce molecules, DNA, cells other than human embryos, tissues, organs, plants, or animals other than humans.

Directs the General Accounting Office to assess the need for amendment of such prohibition, including through: (1) a discussion of new developments, the need for somatic cell transfer to produce medical advances, current public attitudes and prevailing ethical views concerning its use, and potential legal implications of somatic cell transfer research; and (2) a review of any technological developments that may require technical changes to such prohibition.