Malaysia Airlines has asked relatives of passengers on board flight MH370 to leave the hotel accommodation it is providing and return to their homes.
It is closing the family assistance centres set up after the plane vanished on 8 March with 239 people on board.
The airline promised to keep relatives up to date on the search operation.
Meanwhile, a report by Malaysia's transport ministry has recommended the introduction of real-time tracking of commercial air transport.
The ministry's air accident investigation bureau said there had now been two occasions over the past five years when large passenger planes had gone missing and their last position was not accurately known – MH370 and Air France Flight 447 in 2009.
"This uncertainty resulted in significant difficulty in locating the aircraft in a timely manner," the report noted.
There is no requirement from the International Civil Aviation Authority (ICAO), the UN body that oversees global aviation, for real-time tracking.
Transport Minister Hishammuddin Hussein also released for the first time the recordings of conversations between MH370's pilots and air traffic controllers. A transcript was published earlier this month.
The plane's cargo manifest and seating plan was also published by Mr Hussein, along with a summary of events from the disappearance of the plane's radar blip until activation of the Rescue Co-ordination Centre.