Boating rules: licences, documents, required equipment and zones

The lesson in plain words

1. Registration gives a nationality
   • A boat has the nationality of the state whose flag it is entitled to fly.
   • Under the UNCLOS (the UN Convention on the Law of the Sea), every ship sails under one flag only.
   • The registration certificate records the boat's flag and identity; it does not always prove ownership.
   • Registration requirements and small-boat exemptions vary by country.
2. The flag
   • A registered boat flies its national ensign (its nationality flag), usually at the stern.
   • The flag state's rules then follow the boat: its licences, its equipment list and its inspections.
   • Changing the flag means changing the registration first.
3. Insurance
   • Third-party insurance pays for injury or damage you cause to others.
   • Many countries make it compulsory, for example Spain, Portugal, Italy, Croatia and Greece; others do not, but almost every marina and charter company asks for it.
   • Carry the certificate on board, in the local language or English if you can.
4. Radio papers
   • For VHF (very high frequency) marine radio, check your flag state's authorisation rules: you may need a ship station licence. Exemptions vary.
   • A call sign identifies the station; an MMSI (Maritime Mobile Service Identity) is its nine-digit identity for DSC (Digital Selective Calling, for digital radio calls) and AIS (Automatic Identification System, for identifying vessels).
   • Voice-only VHF does not always need an MMSI.
   • You normally need an accepted operator qualification, such as the SRC (Short Range Certificate); national alternatives apply.
   • Missing paperwork must never delay a distress call.
5. Builder's papers
   • Most recreational craft 2.5–24 m long first placed on the EU market or put into service from 16 June 1998 need CE marking (the mark showing compliance with EU product rules) under the Recreational Craft Directive (RCD), subject to exemptions.
   • A later resale alone does not bring an older boat under that rule.
   • The builder's plate shows the design category, maximum load and number of people.
   • Keep the owner's manual on board.
6. Design categories
   • Wind strength uses the Beaufort scale; significant wave height averages the highest third of waves.
   • A covers winds above force 8 and waves above 4 m, excluding abnormal conditions.
   • B covers up to force 8 and 4 m; C up to force 6 and 2 m.
   • D up to force 4 and 0.3 m, with occasional waves up to 0.5 m.
   • Individual waves can be higher.
   • Categories are not distance permissions.

Key data

Key points

• Registration records flag and identity; it does not always prove ownership. A boat has one national flag.
• The flag state's licences, equipment rules and inspections follow the boat.
• Third-party insurance is compulsory in many countries and asked for by most marinas.
• Check flag-state radio authorisation and accepted operator qualifications; national exemptions and alternatives apply.
• The CE builder's plate shows the design category, maximum load and maximum people.

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Practice case & exam keys

Exam keys

1. 1A boat has the nationality of the state whose flag it may fly: one flag only.
2. 2Carry the required registration, insurance, radio papers, skipper qualification and ID in accepted forms.
3. 3Radio: check flag-state authorisation and operator rules; paperwork must never delay distress calls.
4. 4RCD categories A–D describe wind force and significant wave height, not distance offshore.