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COLREGS Reader
COLREGS Reader
Web app · works in your browser

The Rules of the road,
one clause at a time.

All 41 Rules of the 1972 Collision Regulations and the four Annexes, one per screen and read aloud in a natural voice — with the paragraph being spoken highlighted as you hear it. Back and Next step a single clause, so you can stop and think where the Rule does.

Open the reader →
Freein your browser · nothing to install
41 Rules
4 Annexes
Hands free if you want it
What it does

The whole instrument, in the order you actually read it

Every Rule, and the Annexes

All 41 Rules of the 1972 Collision Regulations and all four Annexes, one per screen — the whole instrument, not a summary of it.

Read aloud, clause by clause

Each Rule is narrated in a natural voice, and the paragraph being spoken lights up as you hear it — so you can follow the words or just listen.

The clause is the unit

Back and Next step one part — Rule 8(a), then 8(b) — and start reading it at once. Nothing runs on unless you switch Read on, so a clause is a place you can stop and think.

Hands free

At the pause after a clause the microphone opens and waits: say Next, Back or Repeat and it reads on. Walk the whole of the COLREGS without touching the screen.

Built for a phone

A swipe across the Rule steps a part, tapping a paragraph reads that one, and a sticky bar keeps the controls to hand — while a swipe never steals a scroll.

Find it, and link to it

A searchable index across every Rule and Annex, and every screen has its own address — a link to Rule 15 opens on Rule 15, and reads without JavaScript.

Open Rule 1 and listen

No download and no sign-up — pick a Rule and it starts reading, with the clause you are hearing lit up in front of you.

Every screen has its own link, and reads without JavaScript — so a Rule you send to someone opens on that Rule.

Ways to use COLREGS Reader

DesktopMobile

Pick the surface that suits you — every mode above is the real, working app.