I'm working toward my Deck Watch Officer license and sitting for the USCG exam in about 11 weeks. My sea time is sorted and my instructor says I should be ready, but I'm nervous about the COLREGS sections specifically. I've read the rules probably 30 times at this point but application questions still trip me up — especially crossing, overtaking, and head-on situations where you have to identify both the give-way and stand-on vessel and describe the correct action.
The exam apparently has around 120 questions across multiple modules and you need to pass each module independently. I've been drilling with Lapware and getting around 82% overall but my Rules of the Road module is sitting at 74%, which is uncomfortably close to the 70% pass threshold. I want at least an 85% buffer on that module before I sit.
My weak spots are the sound signal requirements in restricted visibility and the light configurations for vessels engaged in different operations — towing at various lengths, fishing versus not-under-command versus restricted-in-ability-to-maneuver. The light patterns are something I can memorize but keep second-guessing myself under test conditions. Is there a mnemonic system for NUC and RAM lights that actually sticks?
The crossing situation questions have a reliable pattern once you internalize it — vessel on your starboard side is always give-way, and the stand-on vessel maintains course and speed until action becomes necessary to avoid collision. I wrote that on a card and drilled it 50 times until it was automatic. Removes the hesitation that causes wrong answers under pressure.
Sound signals in restricted visibility are worth grinding separately. The patterns for a vessel underway making way versus stopped versus NUC versus towing are all distinct and the exam likes to test the 2-minute interval rule and variations for vessels at anchor. Treat that as its own mini-module for a week.
Lapware is good but the actual USCG exam pulls from the same question database so the wording is identical. If you're at 74% on Rules of the Road after serious drilling, check whether you're making careless errors on questions you actually know versus genuinely missing content. The fix is different in each case.
For NUC lights the classic is two red lights in a vertical line — the vessel can't maneuver. Build from there and think about what each additional signal adds for RAM and constrained vessels. Using NUC as your base case makes the variations stick much better than memorizing each one independently.
Just passed mine two months ago so I'll share what actually clicked for me. Stop reading the rules and start drawing them. Every scenario I got wrong was one I'd tried to hold in my head as text -- the moment I started sketching out vessel positions, bearings, and aspect lights on scrap paper, the "give-way vs stand-on" answers became obvious instead of a coin flip. The examiner doesn't care about your method, so use it.
The other thing nobody told me: they love the edge cases in Rules 8 and 16 together, where the give-way vessel's action has to be both "large and readily apparent" and taken in time. A lot of my wrong practice answers came from picking technically correct actions that were too small or too late. Once I started asking "would this actually work in the real situation" instead of "does this match the rule wording," my score jumped. You've got 11 weeks, that's plenty of time to drill scenarios until the diagrams feel automatic.
Failed my first attempt because I kept trying to memorize the rules word for word instead of actually understanding the decision logic behind them. The COLREGS questions on the USCG exam aren't testing whether you can recite Rule 16, they're testing whether you can work through a stand-on/give-way scenario under pressure and pick the right action in sequence. Once I shifted my studying to running through scenarios from scratch, sketching out the geometry, and asking myself which vessel is which and what each one must do, things started clicking in a way that passive re-reading never gave me.
What specifically helped was drilling the crossing, meeting, and overtaking situations until I didn't have to think about which rule applied, it just came automatically. Also don't sleep on the inland vs. international distinctions because those tripped me up badly the first time. You're 11 weeks out, which is actually plenty of time to get this solid. Just stop re-reading and start applying.
Quick update on my end -- I've been at it for about 6 weeks now and just pulled a 78% on a full COLREGS practice block, which honestly felt amazing after bombing it two weeks ago. The crossing situation questions were killing me forever, but something clicked after I stopped trying to memorize and started drawing out every scenario on paper instead.
I'm sitting for the actual exam in about 5 weeks. Still shaky on a few of the lights and shapes rules but everything else feels way more solid than it did a month ago. Good luck to you -- 11 weeks is plenty of time if you keep grinding the practice questions.
I failed my first attempt and it honestly crushed me because I thought I knew the rules cold. The problem wasn't memorizing them, it was that I kept reading the question and jumping straight to an answer before I really asked myself what the scenario was actually describing. Second time around I slowed way down on COLREGS questions and started sketching out vessel positions on scrap paper, even for ones that seemed obvious. That alone probably saved me four or five questions.
One thing that actually helped a lot was drilling the application-style questions on dwo/questions/watchkeeping and communication 4 because the wording on those is closer to what you'll see on the real exam than most study books. You'll start noticing the traps they set, like the ones where both vessels are give-way but the question's testing whether you know what that actually means for your action. Don't skip the overtaking scenarios either, I almost did and they showed up twice for me.