ColRegs: Rules of the Road 4+

Essential for all seafarers

The Other Hat

Designed for iPad

    • 3.4 • 5 Ratings
    • £3.99



All the boating Rules of the Road in our essential quick reference boating app. Look up the the rules, learn the rules and test yourself. Used by seafarers worldwide.

Quick learning & revision tool, over 100 graphics, for all seafarers worldwide.
"... a brilliant training and reference device"
".... excellent graphics, really first class clean design and accurate info..."

This boating, sailing & marine app provides all skippers, sailors, boaters & fishermen with the essential quick reference knowledge they need to quickly interpret what other vessels are doing, who has right of way & what action they should take to prevent a possible collision, as specified by the IRPCS ColRegs Rule of The Road "Steering and Sailing Rules", and "Sound and Light Signals" sections.

Downloaded & used by thousands of seafarers in the USA, Great Britain, Australia, France, Canada, New Zealand & over 50 other countries

Whether out on the water or on shore, in daylight, darkness or poor visibility, simply open the app & search the rules in seconds to find the appropriate rule and definition.

- No internet connection required.
- Simple, easy to use navigation for quick reference.
- Every rule and definition available at the touch of a finger.
- Expertly drawn illustrations accompanied by clear, concise descriptions of all the rules.

There are 4 main sections to this app:
1) Navigation Rules:
A graphic reference guide which illustrates the majority of the "Steering and Sailing Rules"in 29 easy to follow illustrations. Each illustration has a two line caption explaining the rule. For more detailed information, drop down captions reproduce the appropriate rule in full.

2) Signals:
The "Sound and Light Signals" in 37 easy to follow illustrations. Also included in this section is Annex IV from the ColRegs, detailing the "Distress Signals" used at sea. Each illustration has a two line caption explaining the rule. For more detailed information, where appropriate, drop down captions reproduce the rule in full.

3) ColRegs:
Steering and Sailing Rules (Rules 4 to 19) and Part D: Sound & Light Signals (Rules32 to 37) & Annex IV Distress Signals are reproduced in full.

4) Test Yourself:
A series of multiple choice questions with 28 graphic representations of the rules helps you check your knowledge, plus access to our online boating quizzes.

********************** FEATURES and BENEFITS ************************
- Easy reference learning & revision tool for day skippers & boat pilots
- Over 100 custom made graphics for a better visual experience
- Researched & produced by nautical & marine experts for accuracy
- Positively evaluated by professional pilots for reliability
- Interactive "Test Yourself" Section


"I liked the general feel & simplicity of the ColRegs Rules of the Road app"

"Very easy to use, wish I'd had this when I was doing day skipper!"

"We run a Training centre and these apps are a great aide memoire for our students."

"I have just downloaded and am using ColRegs Nav Lights & Shapes app, a brilliant training and reference device."

"I was so impressed with your Nav Lights app that I bought it and downloaded it immediately."

"I have deleted another app that I had in favour of yours."

"....excellent graphics, really first class clean design and accurate info..."

"I had been looking for a replacement for my Lightmaster and Fogmaster aids and have just joined the itouch users and found your App! There is nothing to match it!"

" Beautifully produced and very simple to use, a cool learning tool"

" Good app for anyone to use, much easier than flip cards"

"For the few pounds, literally, that the apps cost I would think they were excellent value for money."

"The App is an ideal aide memoir for anyone who is responsible for a vessel at sea, from the smallest dinghy to an ocean going supertanker."

- ColRegs: Lights and Shapes provides in depth coverage of ColRegs Rules 20 to 31
- IALA Buoys & Lights - covers both IALA Systems A & B

... this App really can be used all over the world!

What’s New

Version 8.2.2

The latest updated boating Rules of the Road, for all seafarers, now with access to our extended range of test-yourself quizzes.

Ratings and Reviews

3.4 out of 5
5 Ratings

5 Ratings

John4sythe ,


Good for revision and to have with you anytime but question 28 in the test yourself section gives an incorrect answer. The correct answer is " pilot vessel making way"

aog8319 ,


Awful app. Does t include lights or shapes which is really the one you need. Much better free apps.

Pippa the Skippa ,

Col Regs Test

When viewing the test questions on my iPhone 4 I am not able to see the complete option in the multiple choice questions- eg. One short blast - can only read "altering course to ...." Cannot get the words starboard or port displayed to choose the answer! There were other questions that you had to guess the missing words to make a choice on too! Not ideal!

App Privacy

The developer, The Other Hat, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

ColRegs: Nav Lights & Shapes
IALA Buoyage & Lights
Safe Skipper - tips and advice
International Certificate of Competence (ICC)
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