You're studying for your captain's license. Day to day, or maybe you're just trying to remember who has right of way when that sailboat crosses your bow at dusk. Either way, you've typed some version of "according to navigation rules which of the following is true" into a search bar — and now you're staring at a multiple-choice question that feels designed to trick you.
Here's the thing: the rules themselves aren't that complicated. But the way they're tested? That's a different story Small thing, real impact..
What Are the Navigation Rules Anyway
Most people call them "the rules of the road." Officially, they're the International Regulations for Preventing Collisions at Sea — COLREGs for short. S.In the U., inland waters follow a slightly different version (the Inland Navigation Rules), but the core logic is the same everywhere Simple as that..
They're not suggestions. But they're international law. And if you're involved in a collision, the first thing investigators look at is whether you followed them.
The rules cover everything: lights, shapes, sound signals, steering and sailing rules, even what to do in restricted visibility. But when someone asks "which of the following is true," they're usually talking about Part B — Steering and Sailing Rules. That's where the right-of-way questions live Easy to understand, harder to ignore..
Why This Stuff Actually Matters
I've seen experienced boaters freeze up when a situation develops fast. A powerboat crossing from starboard. A sailboat on port tack. But a vessel not under command drifting in the channel. The rules exist so you don't have to negotiate in the moment. You just know.
But here's what most people miss: the rules don't give you "right of way.Worth adding: " They give you responsibilities. That said, the stand-on vessel must hold course and speed. The give-way vessel must take early, substantial action. If both vessels think they're stand-on, that's how collisions happen That's the part that actually makes a difference..
And the ultimate rule — Rule 2 — says you can break any rule if it's necessary to avoid immediate danger. But you better be able to explain why later.
How the Rules Work in Practice
Let's break down the scenarios that show up on every test — and in real life.
Power vs. Power: Crossing Situations
Two power-driven vessels crossing. **You give way.You alter course to starboard (turn right) and pass behind them. Day to day, ** You're the give-way vessel. The one on your starboard side? They're stand-on. Simple Which is the point..
But — and this trips people up — if you're the stand-on vessel, you maintain course and speed until it's clear the other boat isn't acting. Then you can maneuver. Because of that, rule 17. Don't jump the gun That alone is useful..
Power vs. Sail: The Default Hierarchy
Sailboats under sail alone generally have priority over powerboats. But there are exceptions. On the flip side, a sailboat overtaking a powerboat? The sailboat gives way. A sailboat using its engine? It's a powerboat. Day shape: black cone, point down. Night lights: masthead light + sidelights + stern light. Same as any power-driven vessel.
And a sailboat on port tack meeting a sailboat on starboard tack? Worth adding: ** Always. So **Port gives way to starboard. No exceptions.
Overtaking: The Most Misunderstood Rule
Any vessel overtaking another keeps clear. Period. Doesn't matter if you're a kayak passing a supertanker. If you're coming up from more than 22.5 degrees abaft the beam — that's the stern light sector — you're overtaking. You give way. The vessel being overtaken? Stand-on. Even if it's a sailboat and you're a powerboat.
It's the one that gets people. They think "power gives way to sail" overrides everything. It doesn't. Overtaking trumps the hierarchy.
Head-On Meetings
Two powerboats meeting head-on (or nearly so — "reciprocal or nearly reciprocal courses"). Consider this: **Both alter course to starboard. Which means ** Pass port-to-port. Easy.
But how do you know it's head-on? At night: you see both masthead lights in line, or nearly in line, plus both sidelights. That said, by day: you see the other vessel's bow head-on, or nearly so. If there's any doubt — assume it's head-on and turn right Worth keeping that in mind..
Restricted Visibility: Rule 19 Changes Everything
Fog. Worth adding: snow. Night with no background lights. **Rule 19 applies.Day to day, heavy rain. ** And it's different Most people skip this — try not to..
No more stand-on/give-way. That's why every vessel proceeds at a safe speed. Engines ready for immediate maneuver. And if you hear a fog signal forward of your beam — **stop or reduce to bare steerageway. ** work through with extreme caution until the danger passes.
Radar doesn't change this. Still, aIS doesn't change this. Day to day, you still go slow. You still listen. You still assume someone else isn't following the rules Small thing, real impact..
Common Mistakes / What Most People Get Wrong
Mistake 1: Thinking "right of way" is a thing you have.
It's not. You have duties. Stand-on. Give-way. That's it. The word "right of way" doesn't appear in the COLREGs And that's really what it comes down to. Which is the point..
Mistake 2: Assuming sailboats always win.
Only under sail alone. Only when not overtaking. Only when not in a narrow channel (Rule 9 — power-driven vessels must not impede vessels that can only manage in the channel). Context matters And that's really what it comes down to..
Mistake 3: Turning to port to avoid a crossing vessel on your starboard side.
Wrong direction. You turn to starboard — toward the other vessel's stern. Turning to port puts you in front of them. I've seen this on exams and on the water. It's dangerous Nothing fancy..
Mistake 4: Forgetting the "danger signal."
Five short blasts. "I doubt your intentions." Or "I don't understand what you're doing." Use it. It's not rude — it's the rules.
Mistake 5: Treating inland and international rules as identical.
They're close. But inland has extra sound signals (like the "danger signal" for power-driven vessels in narrow channels), different light configurations for towing, and the "Western Rivers" exceptions. Know which water you're on It's one of those things that adds up..
Practical Tips / What Actually Works
Learn the light configurations cold.
Red over green = sailing vessel. Red over white = fishing (trawling). Green over white = fishing (other than trawling). Red over red = not under command. Red-white-red = restricted in ability to maneuver. Three reds in a line = vessel aground. White over white = pilot vessel.
At 2 AM in chop, you don't have time to think. You just know.
Carry a rulebook. Or the app.
The USCG Navigation Rules handbook is $15. The "COLREGs" app by Marine Rules is free and searchable. When someone challenges you — and they will — you pull it up. "Rule 18, paragraph (a), subparagraph (iv)." Conversation over.
Practice "what if" scenarios.
Next time you're on the water, pick a target. Ask: What are they? What am I? Who gives way? What's my action? What's their action? What if they don't act? Do this ten times a trip. It builds instinct.
**Use your VHF — but know the protocol
Use your VHF — but know the protocol
Channel 16 is for hailing, not casual conversation. "All stations, all stations, this is [your call sign], I need to discuss a navigation safety issue with [vessel name/call sign] on channel [13 or 14]." Then switch. Keep it brief, professional, and log-worthy. If they don't respond, they're either ignoring you or don't understand the urgency. Proceed accordingly.
Assume they don’t see you.
Even with lights, even with AIS, even if they’re big. Especially if they’re big. The "fog rule" applies to visibility, not just fog. If you can’t make visual contact, operate as if you’re in restricted visibility. Slow down. Reduce your beam. Prepare to take evasive action.
Don’t rely on autopilot in traffic.
Especially in tight channels or busy harbors. Autohelm can drift into another vessel’s path. Stay engaged. Hand-steer when traffic is heavy. Your instincts are faster than any algorithm.
Log your passage.
Not for the Coast Guard — for you. Write down what you saw, when, and how you responded. "03:47 — cross-track error corrected after Coopers Point Light." Patterns emerge. Weakness shows up. Improvement follows.
Final Thoughts: Navigation Is Negotiation
At its core, maritime navigation isn’t about dominance. On top of that, it’s negotiation without words. Every light, every sound, every course alteration is a sentence in a conversation happening at 10 knots in 2009. Still, the COLREGs are the grammar. That said, your awareness is the tone. And your safety? That’s the shared goal.
Most close calls happen not because of bad weather or mechanical failure — but because of assumptions. The boat that assumes the other sees them. Here's the thing — the sailor who thinks the rules favor them. The skipper who relies on tech instead of training Nothing fancy..
So slow down. Practically speaking, listen harder. Look twice. And remember: in the confined world of the waterway, everyone’s trying to get home alive.
You are not the center of the universe. You’re just trying to deal with it And that's really what it comes down to..
