2.5 Ship Station Control, Inspections & International Rules

2.5 Ship Station Control, Inspections & International Rules

Quick Answer: In international waters an FCC-licensed ship station obeys Part 80 plus the international Radio Regulations and US treaty agreements. The master of the ship has ultimate control of station service. An unlicensed person may speak only under the licensed operator's supervision. Inspections are requested from the Engineer-in-Charge of the nearest FCC District Office. The principal operating position goes in—or adjoining—the room the ship is normally steered from. By international agreement, cargo ships over 300 gross tons and vessels carrying more than 12 passengers must carry radio equipment.

Official sub-topic 1-A-06 (Miscellaneous Rules & Regulations) is the catch-all of the Rules & Regulations topic. Do not dismiss it as filler—it is worth one question on a 24-question element, exactly the same as every other sub-topic, and its six pool items are unusually quotable.

Which rules apply where

A US-flagged, FCC-licensed ship does not leave FCC jurisdiction when it leaves US waters. The governing answer is layered:

So when the pool asks what governs FCC-licensed ship stations in international waters, the answer is not "Part 80 only" and not "the Radio Regulations only"—it is Part 80 plus the international Radio Regulations and the agreements to which the United States is a party. Answer options that name a single source are traps.

Who is actually in charge

This one surprises technically minded candidates: the master of the ship has ultimate control of service at a ship's radio station. Not the licensed radio operator, not the coast station, not the company. The operator holds the technical qualification and is responsible for correct operation; the master holds command.

The practical consequence appears in distress procedure. A distress alert is sent on the authority of the master or the person responsible for the mobile station—the same principle applies to urgency signals (see section 3.4). Radio authority sits inside the ship's command structure, not beside it.

When may an unlicensed person transmit?

Only under the supervision of the licensed operator. This is the third rail of ship-station operating rules, and every wrong option is a plausible-sounding relaxation:

• ❌ "In an emergency only" — too narrow; supervision is the actual test
• ❌ "Never under any circumstances" — too strict
• ❌ "If the person holds any FCC licence" — an amateur licence conveys nothing here
• ✅ "When under the supervision of the licensed operator"

The rule exists because ships routinely need the mate, the master, or a passenger with relevant information to speak on the radio. The licence covers responsibility for the station, not a monopoly on the microphone.

Where the operating position goes

The principal radiotelephone operating position must be installed in the room—or an adjoining room—from which the ship is normally steered while at sea. In plain terms: on or immediately next to the bridge.

The reasoning is watchkeeping. A bridge team maintaining a Channel 16 or DSC watch cannot do it from a compartment three decks down, and a distress alert has to be reachable in seconds by the person conning the vessel. Distractors offering the radio room "anywhere convenient," "adjacent to the engine room," or "in the master's cabin" all fail that test.

Requesting an inspection

Application for inspection of a ship GMDSS radio station is made to the Engineer-in-Charge of the FCC District Office nearest the proposed place of inspection. Note all three elements of that answer:

1. Engineer-in-Charge — a specific FCC title, not "the FCC" generally and not the Wireless Bureau in Washington
2. District Office — the field structure, not headquarters
3. Nearest the proposed place of inspection — geography follows the ship, not the ship's home port or the owner's address

Which ships must carry radio by international agreement

Cargo ships of more than 300 gross tons and vessels carrying more than 12 passengers.

Both halves matter, and the numbers are the classic swap targets:

The 300-gross-ton figure reappears in the GMDSS carriage question (section 3.5: GMDSS is required for SOLAS Convention ships of 300 gross tonnage or more), so learning it once pays twice. Watch the wording though—one is "more than 300 gross tons" for cargo carriage generally, the other is "300 gross tonnage or more" for SOLAS GMDSS. The pool does not usually punish the boundary, but it does punish 100, 500, or 1,000.

Study pattern for this sub-topic

Every item here is a single quotable fact with a named authority attached. Drill them as a list of six, not as concepts to reason through:

1. International waters → Part 80 + Radio Regulations + US agreements
2. Ultimate control → the master
3. Unlicensed speaker → under the licensed operator's supervision
4. Inspection application → Engineer-in-Charge, nearest FCC District Office
5. Principal operating position → room the ship is normally steered from, or adjoining
6. International carriage → cargo >300 GT; any vessel >12 passengers