Navigation Rules contains a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS), including amendments and the Inland Navigation Rules, in effect for all inland waters, including the Great Lakes. App is COLREGs most recent version dated - July 2015.

This app includes an annotated table of contents and a search function to help the reader quickly find the rule and related references. A Favorites page allows quick access to commonly referenced pages. Use the email function to share a page with others.

If you are a boater you need to know this information.

You might also be interested in our other boating apps:

- Boater’s Pocket Reference
- Boating Calcs
- Seamanship
- Ship Captain's Medical Guide

What’s New

Version 4.1.1

* Fixed bug with sharing some pages
* Added support for iPhone X screens

Ratings and Reviews

4.8 out of 5
6 Ratings

6 Ratings

Mischell Hodgson ,

New version is Even better!

Brilliant! Even better now that there are pictorial representations of Nav Lights on various types of vessels. Like the Tape / Favorites feature for ease of referencing. Highly recommend for pleasure/commercial crew and students.

El R0BBO ,

straight up useful !

I take the iPad out every time I go out fishing; with the coastal nav chart apps, and so it makes sense to have an integral copy of 'colregs' as well.
Even though there is lots of superfluous American info included (for us Aussies ); it still has all the relevant data.and there are times when it certainly doesn't hurt to know exactly what to do in a given circumstance; and not everyone can memorise the minutiae, whilst everyone does have a similar duty to observe correct seamanship.
Good price ,Good app.
Well done.


Double Dog Studios
36.8 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
In-App Purchases
  1. Boating Calculators $1.49
  2. Unit Conversions $1.49
  3. Nav Rules Pro $1.49


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like