[1][2] Federal Aviation Regulations have provisions requiring crew rest areas be provided in order to operate a long-haul flight by using multiple crew shifts.
Many crew rest compartments may not normally be used during taxi, takeoff, or landing maneuvers unless equipped with a standard seat.
The FAA rest facility classifications from highest to lowest: Crew rest design and safety considerations are similar between international regulators, for example the European Aviation Safety Agency (EASA) regulations for access control, communications, and signage are similar to those of the FAA's.
[9] By following such regulatory Bilateral Aviation Safety Agreements (which avoid contradictory minimum specifications), aircraft manufacturers can design crew rests to meet the requirements in many markets.
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