7 Basic Rules

 A boat on PORT tack keeps clear of a boat on STARBOARD tack.

A Windward boat keeps clear of a Leeward boat.

The boat ASTERN keeps clear of the boat Ahead.

The boat that is tacking keeps clear of the Boat that is NOT tacking.

If you gain the Right of Way, give the other boat time to keep clear.

The inside boat at four boat lengths from the mark is entitled to room around the mark.

Do your penality turn (on tack and one jibe) if you have violated any of the above rules.