Some quotes:

The States Parties to this Treaty (hereinafter referred to as "the States Parties"),
...etc.

Noting the aspirations expressed by the Parties to the 1963 Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and Under Water to seek to achieve the discontinuance of all test explosions of nuclear weapons for all time,
...etc.

Have agreed as follows:

ARTICLE I
BASIC OBLIGATIONS

1. Each State Party undertakes not to carry out any nuclear weapon test explosion or any other nuclear explosion, and to prohibit and prevent any such nuclear explosion at any place under its jurisdiction or control.

2. Each State Party undertakes, furthermore, to refrain from causing, encouraging, or in any way participating in the carrying out of any nuclear weapon test explosion or any other nuclear explosion.
...etc.

source: www.ctbto.org

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I was planning on designing a starship this fall. Uses nuclear explosions for propulsion. This treaty would seem to prohibit any such vehicle, or even testing of one.

Comments? Any idea how I could get around the legalisms here?