"According to traditional Judaism, G-d gave Noah and his family seven commandments to observe when he saved them from the flood. These commandments, referred to as the Noahic or Noahide commandments, are inferred from Genesis Ch. 9, and are as follows: 1) to establish courts of justice; 2) not to commit blasphemy; 3) not to commit idolatry; 4) not to commit incest and adultery; 5) not to commit bloodshed; 6) not to commit robbery; and 7) not to eat flesh cut from a living animal. These commandments are fairly simple and straightforward, and most of them are recognized by most of the world as sound moral principles. Any non-Jew who follows these laws has a place in the world to come. "

http://www.jewfaq.org/gentiles.htm#Noah