AUS-M500-Y-L2.1

The master's authority

A watchkeeper executes a plan somebody else signed. A master signs the plan. The distance between those two sentences is the whole of this module, and most of the oral examination.

Entry & progression

This is the lesson where the ticket stops being a qualification and starts being a job. The master's authority is not delegated by the owner. It attaches to the office.

What the authority actually is

The master has command of the vessel. That means final responsibility for the safety of the vessel, the crew, the guests, the cargo and the marine environment. It is not shared. It cannot be voted on. When it goes wrong, the flag state, the insurer, the coroner and the press all look at the same person.

The authority is broad because the responsibility is total. A master may refuse to sail. A master may refuse to load. A master may put the vessel about, break a charter, disappoint an owner, and abandon a schedule — and if the decision was made on reasonable grounds for the safety of the vessel or the protection of the marine environment, the master is right to have made it.

The overriding authority

The ISM Code puts this beyond argument. The Company must establish in the safety management system that the master has the overriding authority and the responsibility to make decisions with respect to safety and pollution prevention, and to request the Company's assistance as may be necessary.

Read that carefully, because it is more than a slogan. It obliges the Company to write it down. If a yacht's SMS does not say it, the SMS is defective. And "overriding" means exactly what it says: it overrides the SMS itself, the operations manual, the management company, the charter agreement and the owner's wishes.

NOTE — Overriding authority is a duty, not a privilege It is easy to hear "overriding authority" as a shield — the master's licence to say no. It is better understood as an obligation. If a decision affects safety or pollution prevention, it is yours whether you want it or not. You cannot hand it upward to the management company and you cannot hand it downward to the mate. Declining to decide is a decision, and it is the wrong one.

Pressure on a yacht is different

On a merchant ship, commercial pressure arrives as a schedule. On a yacht it arrives as a guest, in person, on your bridge, at 0200, asking why the vessel is not moving. The owner pays for the boat. The owner pays for you. The owner has a party booked in Porto Cervo and the forecast is a 40-knot mistral.

The industry's failure mode is not incompetence. It is a competent master who knows the right answer and says the comfortable one. Every yacht loss review reads the same: the master knew.

The company's side of the bargain

The overriding authority comes with a right to request the Company's assistance. Use it. A master who says no alone is exposed; a master who says no and immediately puts the reasoning to the Designated Person Ashore in writing has created a record and moved the conversation off the boat.

  • Make the decision on safety and pollution grounds, and say so in those words.
  • Record it in the official log at the time, not afterwards.
  • Notify the DPA and the Company in writing.
  • Tell the guests or charterers what is happening — plainly, once, without apology.

The paperwork is not self-protection. It is the mechanism by which a decision made at sea becomes a decision the Company owns.

You will be judged on the decision you made with the information you had. Make the record show what that was.

Practice questions

5 questions
recallcore

recall · core

Under the ISM Code, the master's overriding authority means the master may: (a) Make decisions on safety and pollution prevention that override the Company's instructions (b) Override the SMS on commercial matters as well as safety matters (c) Delegate final responsibility to the Designated Person Ashore (d) Act only after the Company has approved the decision

recallcore

recall · core

The ISM Code places an obligation on the Company to: (a) Approve every decision the master makes at sea (b) Establish in the SMS that the master has overriding authority (c) Appoint the master as the Designated Person Ashore (d) Indemnify the master against all commercial loss

recallcore

recall · core

A charterer insists on departing into a forecast gale. The master considers it unsafe. The correct action is to: (a) Depart, and log the charterer's instruction as the reason (b) Ask the Designated Person Ashore to make the decision (c) Delay, log the decision and the safety grounds at the time, and notify the DPA in writing (d) Put the decision to a vote of the senior officers

recallcore

recall · core

'Overriding authority' is best understood as: (a) A privilege the master may choose to exercise (b) A power granted by the owner and revocable by the owner (c) A right that applies only when the vessel is at sea (d) A duty — the master cannot decline to decide

recallcore

recall · core

The master's overriding authority includes an express right to: (a) Request the Company's assistance as may be necessary (b) Terminate the charter party (c) Dismiss any crew member without notice (d) Ignore port state control instructions

AI-drafted catalogue content pending SME review. Sea service and course requirements change; verify with AMSA before relying on this for a career decision.

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