Nuclear Terrorism Conventions Implementation and Safety of Maritime Navigation Act of 2013

[AI summary unavailable — showing source text] Nuclear Terrorism Conventions Implementation and Safety of Maritime Navigation Act of 2013 - Amends the federal criminal code to provide that existing prohibitions against conduct that endangers the safe navigation of a ship: (1) shall apply to conduct that is committed against or on board a U.S. vessel or a vessel subject to U.S. jurisdiction, in U.S. territorial seas, or by a U.S. corporation or legal entity; and (2) shall not apply to activities of armed forces during an armed conflict or in the exercise of official duties. Sets forth procedures regarding the delivery of a person who is suspected of committing a maritime navigation or fixed platform offense to the authorities of a country that is a party to the Convention for the Suppression of Unlawful Acts against the Safety of Maritime Navigation. Subjects property used or intended to be used to commit or to facilitate the commission of a maritime navigation offense to civil forfeiture. Prohibits: (1) using in or on a ship or a maritime fixed platform any explosive or radioactive material, biological, chemical, or nuclear weapon, or other nuclear explosive device in a manner likely to cause death or serious injury or damage w…