To reauthorize the Marine Mammal Protection Act of 1972, and for other purposes.

Marine Mammal Preservation and Recovery Act of 2003 - Amends the Marine Mammal Protection Act of 1972 (MMPA) to redefine marine mammal "harassment" in a manner that takes into account cumulative effects of behavioral changes. Requires the Marine Mammal Commission to establish a captive marine mammal care and maintenance standards advisory committee. Prohibits marine...