Q: Your examiner asks: "What does a Chief Mate < 3000 GT certificate permit, and what are the practical limitations compared to a Chief Mate Unlimited?"

Chief Mate < 3000 GT certificate (STCW Regulation II/2 — Chief Mate < 3000 GT): permits serving as Chief Mate on ships less than 3000 GT — this includes many coastal traders, short-sea vessels, offshore support vessels, large passenger ferries, and survey vessels. Limitations compared to Unlimited: (1) Cannot serve as Chief Mate on vessels of 3000 GT or above; (2) May be geographically unrestricted — depends on individual endorsement (CM 3000 GT may have near-coastal or unlimited geographic endorsement depending on training and flag state); (3) The competency standard assessed covers the same management-level functions as unlimited but with parameters appropriate to smaller vessel operations (e.g., cargo types, stability calculations, crew size); (4) The certificate holder can progress to CM Unlimited and Master Unlimited by completing additional sea service and passing further oral examinations. STCW Chapter II separates certification by vessel size and geographic scope: Regulation II/1 covers OOW on ships ≥500 GT; Regulation II/2 covers Chief Mate and Master; Regulation II/3 covers OOW, Chief Mate and Master on ships

Question 1

During cargo operations, a hose coupling fails and approximately 80 litres of hydraulic oil spills onto the deck. Some oil reaches a freeing port before you can contain it. Oil is now visible on the water alongside the berth. Describe your actions.

Accepted Answer

Immediate actions: (1) Stop the source — close the hydraulic system valve immediately; (2) SOPEP activation — your vessel's Shipboard Oil Pollution Emergency Plan (SOPEP) is activated; notify the master immediately; (3) Contain on deck — use oil spill kit (oil absorbent pads, booms, kitty litter) to contain and absorb remaining oil on deck before further freeing port escape; (4) Report to port authority IMMEDIATELY — MARPOL Annex I Regulation 26 and the port state regulations require immediate reporting of any oil discharge to port water, however small; failure to report is a criminal offence (potentially greater penalty than the pollution itself); (5) Request port reception facility for oily waste/absorbent materials; (6) Record in Oil Record Book Part I — oil spill, quantity, circumstances, immediate actions; (7) Note protest if relevant (to preserve position in any subsequent claim); (8) Company and P&I Club notification. Oil spill response at Chief Mate level is a practical and regulatory knowledge area. SOPEP requirement: MARPOL Annex I Regulation 37 requires all ships over 400 GT to have an approved SOPEP — it must be updated and available for use by the crew. Hydraulic oil is regulated: MARPOL Annex I defines "oil" broadly — it includes any mineral oil including hydraulic oil. The discharge into port water of any oil is prohibited regardless of quantity — there is no minimum threshold exemption for port areas. Immediate reporting: most jurisdictions (including UK, Netherlands, and all major ports) require immediate reporting of any oil discharge to port waters. The Oil Record Book Part I (machinery space operations) must record the discharge and the actions taken. The penalty for failing to report is often greater than the penalty for the discharge itself — deliberately concealing a spill is treated as a serious criminal offence under MARPOL and national legislation. The UK Merchant Shipping Act 1995 s.131 criminalises oil pollution, and the Environment Act provides civil liability.

Question 2

Your examiner asks: "What does a Chief Mate < 3000 GT certificate permit, and what are the practical limitations compared to a Chief Mate Unlimited?"

Accepted Answer

Chief Mate < 3000 GT certificate (STCW Regulation II/2 — Chief Mate < 3000 GT): permits serving as Chief Mate on ships less than 3000 GT — this includes many coastal traders, short-sea vessels, offshore support vessels, large passenger ferries, and survey vessels. Limitations compared to Unlimited: (1) Cannot serve as Chief Mate on vessels of 3000 GT or above; (2) May be geographically unrestricted — depends on individual endorsement (CM 3000 GT may have near-coastal or unlimited geographic endorsement depending on training and flag state); (3) The competency standard assessed covers the same management-level functions as unlimited but with parameters appropriate to smaller vessel operations (e.g., cargo types, stability calculations, crew size); (4) The certificate holder can progress to CM Unlimited and Master Unlimited by completing additional sea service and passing further oral examinations. STCW Chapter II separates certification by vessel size and geographic scope: Regulation II/1 covers OOW on ships ≥500 GT; Regulation II/2 covers Chief Mate and Master; Regulation II/3 covers OOW, Chief Mate and Master on ships

Question 3

As Chief Mate on a 2,200 GT short-sea general cargo vessel, you are asked to plan a winter coastal passage from Aberdeen to Rotterdam. Your examiner asks how you approach the appraisal and planning stages.

Accepted Answer

SOLAS V Reg 34 Appraisal stage: gather: (1) Weather forecast — North Sea winter weather from Met Office and NAVTEX: likely depressions every 3-5 days, Force 8-9 common, sea state 5-7m in the northern North Sea; (2) Tidal information — tidal streams in the North Sea can reach 2-3 knots off headlands; factor into ETAs and berth windows; (3) Notices to Mariners — update charts; check for new wrecks, hazards, or Traffic Separation Schemes modifications; (4) Ship's condition — cargo distribution, stability at departure, GM, SF/BM; (5) Pilot/port information — check Rotterdam Waterway guidance, Maas approach, VTS; (6) NAVAREA warnings and current MSI broadcasts. Planning stage: (1) Lay off the track on charts — clearances from Humber, Dutch Frisian Islands, Traffic Separation Schemes; (2) Plan departure for fair weather window if possible; (3) Identify contingency ports (Bremerhaven, IJmuiden) if weather deteriorates; (4) Calculate distance, speed, ETA with weather routing consideration. SOLAS V Regulation 34 applies to all ships on all voyages — there is no exemption for coastal vessels or short-sea traders. The four-stage voyage planning process (Appraisal, Planning, Execution, Monitoring) is required at management level and the Chief Mate's role in the process is examined at CM level. North Sea winter conditions: this is a specific scenario that tests geographic knowledge — North Sea winter has a high frequency of Atlantic depressions, particularly October-February. Force 8-9 gale conditions are common for periods of 12-24 hours. A 2,200 GT coastal vessel in these conditions: heavy rolling, deck cargo risk, sea spray and structural stress. The passage from Aberdeen to Rotterdam involves passing through TSS schemes (Outer Hebrides, North Sea traffic separation). Contingency ports demonstrate planning for failure: if weather deteriorates mid-passage, the Chief Mate should have pre-identified ports of refuge and their approach conditions. CM level candidates must demonstrate awareness of the full SOLAS V/34 framework and apply it with geographic specificity.