Document ID: chunk:federal_register_of_legislation:F2008C00179:body:0:p4
Version: federal_register_of_legislation:F2008C00179
Segment Type: other
Provision Reference: 
Character Range: 12058–15074

not differ in such essential respects as:
       2.2.1                      the lines and constituent materials of the bodywork of the passenger compartment;
       2.2.2                      the arrangement of the controls;
       2.2.3                      the performance of the protective system, if the reference zone within the head impact zone determined according to annex 8 (dynamic evaluation) is chosen by the applicant.
       2.2.3.1                Vehicles that differ only in the performance of the protective system(s) belong to the same vehicle type if they offer an equal or better protection for the occupants compared with the system or vehicle submitted to the technical service responsible for conducting the approval tests.
    2.3              "reference zone" is the head impact zone as defined in annex 1 to this Regulation, or at the choice of the manufacturer, according to annex 8, excluding the following areas: (see annex 10, explanatory notes, paragraphs 2.3. and 2.3.1.)
       2.3.1                      the area bounded by the forward horizontal projection of a circle circumscribing the outer limits of the steering control, increased by a peripheral band 127 mm in width; this area is bounded below by the horizontal plane tangential to the lower edge of the steering control when the latter is in the position for driving straight ahead. (see annex 10, explanatory notes, paragraphs 2.3. and 2.3.1.)
       2.3.2                      the part of the surface of the instrument panel comprised between the edge of the area specified in paragraph 2.3.1. above and the nearest inner side-wall of the vehicle; this part of the surface is bounded below by the horizontal plane tangential to the lower edge of the steering control and; (see annex 10, explanatory notes, paragraphs 2.3. and 2.3.1.)
       2.3.3                      the windscreen side pillars; (see annex 10, explanatory notes, paragraphs 2.3. and 2.3.1.)
    2.4              "level of the instrument panel" means the line defined by the points of contact of vertical tangents to the instrument panel; (see annex 10, explanatory notes, paragraph 2.4.)

    2.5              "roof" means the upper part of the vehicle extending from the upper edge of the windscreen to the upper edge of the rear window and bounded at the sides by the upper framework of the side-walls; (see annex 10, explanatory notes, paragraph 2.5.)

    2.6              "belt line" means the line constituted by the transparent lower contour of the side windows of the vehicle;

    2.7              "convertible car" means a vehicle where, in certain configurations, there is no rigid part of the vehicle body above the belt line with the exception of the front roof supports and/ or the roll-over bars and/or the seat-belt anchorages points; (see annex 10, explanatory notes, paragraphs 2.5. and 2.7.)

    2.8              "vehicle with opening roof" means a vehicle of which only the roof or part of it can be folded back or be opened, or may