As used in this part 1513:
Bed. See Bunk bed.
Bed end structure means an upright unit at the head and foot of the bed to which the side rails attach.
Bunk bed means a bed in which the underside of any foundation is over 30 inches (760 mm) from the floor.
Foundation means the base or support on which a mattress rests.
Guardrail means a rail or guard on a side of the upper bunk to prevent a sleeping occupant from falling or rolling out.
source: 64 FR 71907, Dec. 22, 1999, unless otherwise noted.
cite as: 16 CFR 1513.2