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Welcome to the NavRules for Windows© home page. NavRules is a training program for learning the "rules of the road" that all boat operators are required to know. These rules include the internationally recognized Collision Regulations, or COLREGS, as well as the US Inland Rules.

NavRules is a shareware program. This means that you may download and try it out before purchasing it, and may also give copies of the downloaded installation program to other people. You may try out the program for up to 30 days. After 30 days you must either remove the program or register it by visting the website and clicking on the Register link. Registration costs $20 USD.


  • At long last NavRules 3.0 is available. This is a complete rewrite of the program in order to properly run on newer versions of Windows. There is no new functionality in this release so if you have an older version and are happy with it then there is no need to upgrade.
  • NavRules 3.0 requires Microsoft's .NET framework in order to run. If you do not have .NET installed then you will be prompted to install it when you install NavRules.
  • Although NavRules is a Windows application it has been tested and runs properly on Apple Macintosh computers running either VMWare Fusion or Parallels Desktop.
  • To download NavRules 3.0 simply click on the Download link to the left.


NavRules copyright © 1994-2014 Bruce A. Pennypacker - All rights reserved