In response to the sinking accident of a sightseeing boat off the Shiretoko Peninsula in Hokkaido, the Ministry of Land, Infrastructure, Transport and Tourism has determined to oblige small passenger ships to put in a “bulk wall” to divide the within of the ship in order that the flooding doesn’t unfold to the entire.
Source
Requirement to put in ‘bulkhead’ for small passenger ships 2 years later Ministry of Land, Infrastructure, Transport and Tourism | NHK
