Auxiliary Door Latch is a latch equipped with a fully latched position, with or without a secondary latched position, and fitted to a door or door system equipped with a primary door latch system.
Auxiliary Door Latch System consists of door latches and strikers other than those associated with the primary door latch system.
Back Door is a door or door system on the back end of a motor vehicle through which passengers can enter or depart the vehicle or cargo can be loaded or unloaded. It does not include:
Body Member is that portion of the hinge normally affixed to the body structure.
Door Closure Warning System is a system that will activate a visual signal when a door latch system is not in its fully latched position and the vehicle ignition is activated.
Door Hinge System is one or more hinges used to support a door.
Door Latch System consists of latches and strikers installed on a door system.
Door Member is that portion of the hinge normally affixed to the door structure and constituting the swinging member.
Door System is the door, latch, striker, hinges, sliding track combinations and other door retention components on a door and its surrounding doorframe. The door system of a double door includes both doors.
Double Door is a system of two doors where the front door or wing door opens first and connects to the rear door or bolted door, which opens second.
Folding Door is a movable barrier, which will close off an entranceway to a bus, multipurpose passenger vehicle or truck, consisting of two or more hinge panels that swing, slide, or rotate; does not have a striker and latch assembly.
Fork-bolt is the part of the latch that engages and retains the striker when in a latched position.
Fork-bolt Opening Direction is the direction opposite to that in which the striker enters the latch to engage the fork-bolt.
Fully Latched Position is the coupling condition of the latch that retains the door in a completely closed position.
Hinge is a device system used to position the door relative to the body structure and control the path of the door swing for passenger ingress and egress.
Hinge Pin is that portion of the hinge normally interconnecting the body and door members and establishing the swing axis.
Latch is a device employed to maintain the door in a closed position relative to the vehicle body with provisions for deliberate release (or operation).
Primary Door Latch is a latch equipped with both a fully latched position and a secondary latched position and is designated as a "primary door latch" by the manufacturer.
Primary Door Latch System consists of a primary door latch(s) and a striker(s).
Secondary Latched Position refers to the coupling condition of the latch that retains the door in a partially closed position.
Side Front Door is a door that, in a side view, has 50 percent or more of its opening area forward of the rearmost point on the driver's seat back, when the seat back is adjusted to its most vertical and rearward position. For vehicles without a driver's designated seating position it is a door that in a side view, has 50 percent or more of its opening area forward of the rearmost point on the most rearward passenger's seat back in the front row of seats, when the seat backs are adjusted to their most vertical and rearward position.
Side Rear Door is a door that, in a side view, has 50 percent or more of its opening area to the rear of the rearmost point on the driver's seat back, when the driver's seat is adjusted to its most vertical and rearward position. For vehicles without a driver's designated seating position it is a door that in a side view, has 50 percent or more of its opening area rear of the rearmost point on the most rearward passenger's seat back in the front row of seats, when the seat backs are adjusted to their most vertical and rearward position.
Striker is a device with which the latch engages to maintain the door in the fully latched or secondary latched position.
Trunk Lid is a movable body panel that provides access from outside the vehicle to a space wholly partitioned from the occupant compartment by a permanently attached partition or fixed or fold-down seat back.
49 C.F.R. §571.206
At 72 FR 5399, June 27, 2007, § 571.206 was amended by adding S.5.3; however, the amendment could not be incorporated because S.5.3 already exists.