Chief Rabbi Yona Metzger issued a halachic ruling stating that mezuzot must be installed on yacht doors. The ruling was issued in response to a query by Itamar Shimoni, CEO of Atarim, which operates the Tel Aviv marina.
The ruling specified the criteria for installing a mezuzah: The yacht must be at least 2.5 meters long (roughly 8 feet), the ceiling and the door must be over 1 meter, and it must also be used for sailing and accommodation for several days at the very least.
Rabbi Metzger also made references to previous rulings and opinions on the matter and compared ancient boats to the modern age's massive cruise ships. "A large yacht accommodating passengers for many days will surely be considered a permanent accommodation and must contain a mezuzah," the rabbi noted.
Akiva Novick contributed to this report