What is the 12-guest rule (PYC code) and why does it exist?
Most privately-registered charter yachts are legally limited to 12 overnight guests under long-standing maritime passenger-safety rules, regardless of the yacht's size. Yachts built or certified to the Passenger Yacht Code (PYC) or an equivalent commercial code can carry more — sometimes up to 36 or more guests — because they meet stricter safety, fire and evacuation standards, similar to a small passenger ship.
Key facts
- The 12-guest cap comes from international maritime passenger-safety conventions, not from cabin count or yacht size.
- A 50-metre yacht with 20 cabins still caps at 12 overnight guests unless it holds PYC or equivalent commercial certification.
- PYC-certified yachts meet stricter fire safety, evacuation and crew-training standards, which is what legally allows more guests aboard.
- Some of the largest charter yachts in the 20–86m segment are PYC-certified specifically so they can host large groups, weddings and multi-family charters.
Where the rule comes from
The 12-guest limit stems from international conventions (broadly following SOLAS-derived passenger-safety thresholds) that treat a vessel carrying more than 12 paying guests as a passenger ship, subject to much stricter safety, stability and crew-training requirements than a private pleasure yacht.
This is why the limit applies regardless of how many cabins a yacht has — a superyacht with capacity to sleep 30 in comfort will still cap at 12 paying overnight guests unless it holds the additional certification that reclassifies it.
What changes with PYC certification
The Passenger Yacht Code (PYC), and similar codes used by different flag states, sets out the extra fire safety, structural and evacuation standards a yacht must meet to legally carry more than 12 overnight guests commercially. Meeting the code typically means more lifeboats or life rafts, upgraded fire suppression, additional qualified crew, and regular safety drills and inspections.
Building or converting a yacht to PYC standard is a significant investment, which is why PYC-certified charter yachts tend to be larger, newer builds specifically marketed for weddings, corporate events and large multigenerational groups.
What this means for booking a large group
If your group is 12 guests or fewer, this rule simply doesn't affect you — it only becomes relevant once you're planning for more. For larger groups, your broker will specifically shortlist PYC or equivalent-certified yachts, which narrows the fleet but still leaves excellent options in the 40m-and-above range.
The alternative some groups choose is chartering two smaller yachts side by side rather than one large PYC vessel, which can work out similarly priced and adds two full crews and two sets of amenities.
Common questions
Can I just add extra guests informally beyond 12?
No — this is a safety law, not a house rule, and legitimate charter operators will not exceed it on a non-PYC yacht regardless of what a guest requests.
Are PYC yachts more expensive to charter?
Generally yes, reflecting their larger size and higher build/certification cost, but the per-guest cost for a large group is often comparable to — or better than — chartering multiple smaller yachts.
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