The amended regulation III/19 in the International Convention for the Safety of Life at Sea for passenger muster was adopted in 2013 in the wake of the Costa Concordia incident, to ensure that passengers undergo safety drills, including mustering at the lifeboat stations, before the ship departs or immediately on departure.
Previously, the requirement was for the muster of passengers to take place within 24 hours of their embarkation.
In 2012, member cruise lines of CLIA voluntarily adopted the passenger muster policy and other safety policies that are now in force.