This document outlines requirements for musters, drills, and onboard training related to fire-fighting equipment, watertight integrity, survival craft, and lifesaving appliances (LSA) for different classes of merchant vessels. Key requirements include conducting abandon ship drills and fire drills monthly for all crew members, weekly for some classes of ships, and within 24 hours of more than 25% new crew embarking. Drills must also be held for passengers within 24 hours of embarkation. Monthly, quarterly, and annual inspections are required to ensure fire-fighting equipment is in working order, and watertight doors, valves, and indicators are inspected weekly. Each lifeboat must be launched and maneuvered in the