A contractor wants to weld a bracket on the main deck of your chemical tanker while the vessel is in port with tanks gas-freed. Describe the permit-to-work process.

A. HOT WORK PERMIT — CHEMICAL TANKER: HOT WORK is any work involving open flame, electric arc, grinding sparks, or heat that could ignite flammable vapour. On a chemical/product tanker — extreme care required even when tanks are declared gas-free. PERMIT PROCESS: (1) PRE-PERMIT SURVEY: the chief officer and the responsible engineer inspect the work area and all adjacent tanks, void spaces, and cofferdams; (2) GAS TESTING: all tanks, cofferdams, and spaces adjacent to the work area must be tested and certified gas-free. Test equipment: calibrated multi-gas detector. Results must be below 1% LEL for hot work to proceed; (3) RESPONSIBLE OFFICER: a designated responsible officer (typically CM) must be continuously present — not just "available"; (4) PERMIT COMPONENTS: (a) Work description; (b) Location; (c) Time and duration; (d) Gas testing results — signed by tester; (e) Fire watch name; (f) Emergency procedures; (g) Signed by master AND CM AND chief engineer; (5) FIRE WATCH: a dedicated fire watch person must stand watch at the work site continuously. They do not assist with the work — their sole function is to watch for fire. They carry a charged fire hose; (6) RE-TESTING: gas test results are only valid for a limited time (typically 30-60 minutes). Re-test at intervals; (7) SUSPENSION: hot work must be suspended if: gas test fails; a vessel moves nearby (risk of vapour from another vessel); weather changes (wind direction change can bring vapour from another part of the terminal); permit expires; (8) CLOSE-OUT: on completion, a hot work close-out inspection is made — check for hidden smouldering; sign off the permit.

B. Gas-freed tanks are safe for hot work without a permit. Once a tank is certified gas-free by the chief officer, standard maintenance procedures apply and no permit is required.

C. Hot work permits are only required when tanks contain cargo. On a vessel in ballast condition without cargo in tanks, hot work may proceed without a formal permit.

D. Welding on a tanker is prohibited in port. All hot work on tankers must be conducted at anchor in an approved area with coastguard oversight.

A. MLC 2006 — CM CREW WELFARE OBLIGATIONS: MLC 2006 (Maritime Labour Convention, in force 2013) consolidates and updates 68 previous ILO maritime conventions. As the officer responsible for deck crew, the CM has specific obligations: (1) WORKING HOURS: ensure deck crew rest hours comply with MLC Standard A2.3 — minimum 10 hours rest per 24 hours, 77 hours per 7 days. Maintain accurate rest hour records. Never sign falsified records; (2) SAFE WORKING CONDITIONS: MLC Title 4 — ensure a safe workplace. Risk assessments must be completed for hazardous tasks. PPE must be provided and its use enforced; (3) WAGES: MLC Standard A2.2 — crew must be paid monthly (or agreed intervals) in full. CM should not withhold or deduct wages improperly; (4) FOOD AND CATERING: MLC Standard A3.2 — adequate food and potable water. Report to master if galley conditions or food quality is below standard; (5) ACCOMMODATION: MLC Standard A3.1 — report any accommodation deficiencies affecting deck crew to the master and DPA; (6) MEDICAL CARE: MLC Standard A4.1 — ensure crew have access to medical care. Know the location of the Medical Guide (Ship Captain's Medical Guide). Know the TMAS (Telemedical Assistance Service) number for advice; (7) COMPLAINT PROCEDURE: MLC Standard A5.1.5 — crew must have access to a complaint mechanism without fear of retaliation. CM must not suppress or discourage complaints; (8) REPATRIATION: MLC Standard A2.5 — abandoned crew must be repatriated at no cost to themselves. Know the procedure.

B. MLC 2006 only applies to vessels over 500 GT. The Chief Mate on smaller vessels has no MLC obligations toward crew welfare.

C. MLC welfare obligations are the master's responsibility. The Chief Mate's role is operational management of deck crew tasks only.

D. MLC 2006 is a flag state regulatory document. Port state obligations under MLC are administered by port authority officials — not ship officers.

A. NEW CREW SAFETY INDUCTION — CM RESPONSIBILITIES: SOLAS III/19 and ISM Code Section 6: new crew must receive a safety induction before being assigned duties. REQUIRED ELEMENTS: (1) MUSTER LIST: show the crew member their station on the muster/emergency list — what they must do in each emergency type (fire, flooding, abandon ship, man overboard); (2) LIFERAFT/LIFEBOAT: location and how to board their assigned survival craft; (3) IMMERSION SUIT: show where their personal immersion suit is stored; check it fits; demonstrate donning; (4) LIFEJACKET: location, how to don, how to operate the light and whistle; (5) FIRE EXTINGUISHERS: location of nearest portable extinguishers; how to use them (PIN, AIM, SQUEEZE, SWEEP); type of extinguisher and what it can/cannot be used on; (6) EMERGENCY EXITS AND ESCAPE ROUTES: at least two routes from their cabin and workplace; (7) ALARM SIGNALS: general emergency alarm (7 short + 1 long blast); abandon ship (7 short + 1 long on bell AND continuous on whistle); fire alarm (continuous bell); (8) PERMIT TO WORK SYSTEM: explanation of the PTW system — enclosed space entry, hot work, working aloft. No work without permit; (9) SMOKING POLICY: designated smoking areas only; (10) REPORTING: how to report a hazard or near-miss; (11) SIGN-OFF: the crew member must sign the induction record to confirm they received the briefing. Keep the signed record on file.

B. New crew safety induction is only required for officers. Ratings join the vessel and shadow experienced crew — the on-the-job experience constitutes their safety induction.

C. Safety induction can be delayed until the vessel reaches sea. In port, there are no safety risks for new crew and immediate induction is not required.

D. The bosun provides all safety inductions for deck ratings. The Chief Mate only provides inductions for junior officers and cadets.