Safety and Pollution Prevention
Safety and Pollution Prevention tests day-to-day risk control and environmental compliance. It links permit systems, PPE, enclosed spaces, garbage, oil and chemical pollution to the SMS and to port state control.
Core rules
- Risk control follows the hierarchy: eliminate, substitute, engineering controls, administrative controls, then PPE.
- Enclosed space entry needs isolation, ventilation, atmosphere testing for O2, flammable gas, H2S and CO, a permit, standby and continuous monitoring.
- MARPOL garbage categories must be segregated; oil residues go through the oily-water separator and ORB; SOPEP covers spill response.
- Near-miss reporting, safety committee meetings and toolbox talks are leading indicators, not paperwork.
Worked example
A cargo hold reads O2 20.9%, flammable gas 0% LEL, H2S 0 ppm and CO 0 ppm. The reading does not by itself authorise entry. The space still needs isolation, ventilation, a valid permit, a standby person and continuous monitoring; if the atmosphere changes, evacuation is required. The reasoning: entry control is a system of barriers, and a single initial reading can be stale or unrepresentative.
Traps
Treating PPE as the first control; using a permit instead of testing; assuming 0% LEL covers toxic gas; and mixing garbage categories. Scrubber washwater, sewage and ballast discharges are frequent port state control findings.