The *Mobile Facilities* volume is intended to be carried on board rescue
units, aircraft and vessels to help with the performance of a search,
rescue or on-scene coordinator function and with aspects of search and
rescue that pertain to their own emergencies.

A new edition of the IAMSAR Manual is published every three years. The
2022 edition includes amendments, adopted by the International Civil
Aviation Organization (ICAO) and approved by the Maritime Safety
Committee of the International Maritime Organization (IMO) at its 103rd
session in May 2021 by means of MSC.1/Circ.1640, which become applicable
on 1 June 2022.