• Shout 'man overboard' immediately and point continuously at the casualty.
• Deploy a life ring or throw bag towards the person in the water.
• Maintain constant visual contact with the casualty until rescue arrives.
• Alert the vessel operator or site emergency controller without delay.
• Note the time and location where the person entered the water.
• Wear a personal flotation device at all times when working near water.
• Attend all man overboard drills and know your assigned role.
• Know the location of all rescue equipment before starting work.
• Keep rescue equipment clear, accessible, and in good condition.
• Call 999 and request the coastguard if the incident is at sea.

• DON'T jump into the water to rescue someone unless trained to do so.
• DON'T lose visual contact with the person in the water.
• DON'T delay raising the alarm — shout and act immediately.
• DON'T remove or obstruct access to life rings or rescue equipment.
• DON'T work near water without wearing a personal flotation device.
• DON'T assume the casualty can swim — cold water disables quickly.
• DON'T skip man overboard drills — they are essential for effective response.
• DON'T move the vessel without confirming the casualty's position first.
• DON'T ignore a false alarm — always respond as if it is real.
• DON'T use rescue equipment for any purpose other than emergencies.

See also: Marine Works Safety Awareness | Drowning Prevention and Water Safety