Document ID: chunk:federal_register_of_legislation:F2019L00029:body:0:p7
Version: federal_register_of_legislation:F2019L00029
Segment Type: other
Provision Reference: 
Character Range: 19122–21891

the device by which the seat or its parts can be adjusted to a position suited to the morphology of the seated occupant; this device may, in particular, permit of:
2.11.1. Longitudinal displacement;
2.11.2. Vertical displacement;
2.11.3. Angular displacement;
2.12. "Displacement system" means a device enabling the seat or one of its parts to be displaced or rotated without a fixed intermediate position, to permit easy access to the space behind the seat concerned;
2.13. "Locking system" means any device ensuring that the seat and its parts are maintained in any position of use and includes devices to lock both the seat back relative to the seat and the seat relative to the vehicle.
2.14. "Reference zone" means the space between two vertical longitudinal planes, 400 mm apart and symmetrical with respect to the H point, and defined by rotation from vertical to horizontal of the head form apparatus, as described in Regulation No. 21, Annex 1. The apparatus shall be positioned as described in that Annex to Regulation No. 21 and set to the maximum length of 840 mm.
2.15. "Thorax load limiter function" means any part of the safety-belt and/or the seat and/or the vehicle intended to limit the level of the restraint forces applying to the occupant thorax in case of a collision.
3. Application for approval
3.1. The application for approval of a vehicle type with regard to the belt anchorages shall be submitted by the vehicle manufacturer or by his duly accredited representative.
3.2. It shall be accompanied by the under mentioned documents in triplicate and by the following particulars:
3.2.1. Drawings of the general vehicle structure on an appropriate scale, showing the positions of the belt anchorages, of the effective belt anchorages (where appropriate) and detailed drawings of the belt anchorages;
3.2.2. A specification of the materials used which may affect the strength of the belt anchorages;
3.2.3. A technical description of the belt anchorages;
3.2.4. In the case of belt anchorages affixed to the seat structure:
3.2.4.1. Detailed description of the vehicle type with regard to the design of the seats, of the seat anchorages and of their adjustment and locking systems;
3.2.4.2. Drawings, on an appropriate scale and in sufficient detail, of the seats, of their anchorage to the vehicle, and of their adjustment and locking systems.
3.2.5. Evidence that the safety-belt or the restraint system used in the anchorages approval test complies with UN Regulation No. 16, in the case where the car manufacturer chooses the alternative dynamic strength test.
3.3. At the option of the manufacturer, a vehicle representative of the vehicle type to be approved or the parts of the vehicle considered essential for the belt anchorages test, by