Document ID: chunk:federal_register_of_legislation:F2024C00148:reg:12:p4
Version: federal_register_of_legislation:F2024C00148
Segment Type: reg
Provision Reference: reg 12 (pt 4/24)
Character Range: 241406–244377

concerning the approval or refusal or extension or withdrawal of
       approval or production definitely discontinued of a vehicle type with regard to
       the installation of rear‑view mirrors, pursuant to Regulation No./81............. 123

        3 Arrangement of the rear‑view mirror approval mark........................ 125

        4 Arrangements of the vehicle approval mark concerning the installation of rear‑view mirrors               126

  5 Test method for determining reflectivity..................................... 127

  6  Procedure for determining the radius of curvature "r" of a mirror's reflecting surface........ 133

  7 Control of the conformity of production...................................... 135

1.  Scope
 This Regulation applies:
1.1.  To rear view mirrors intended to be installed on vehicles of categories L[1] without bodywork partly or wholly enclosing the driver and
1.2.  To the installation of rear view mirrors on vehicles of category L without bodywork partly or wholly enclosing the driver[2].
I  Rear‑view mirrors
2.  Definitions
 For the purpose of this Regulation,
2.1. "Rear‑view mirror" means any device intended to give a clear view to the rear;
2.2. "Rear‑view mirror type" means devices which do not differ in respect of the following main characteristics:
2.2.1. The dimensions and radius of curvature of the rear‑view mirror reflecting surface,
2.2.2. The design, shape or materials of the rear‑view mirrors, including the connection with the vehicle;
2.3. "Class of rear‑view mirrors" means all devices having one or several features or functions in common.
 The rear‑view mirrors mentioned in this Regulation are grouped in Class "L".
2.4. "r" means the average of the radii of curvature measured over the reflecting surface, in accordance with the method described in paragraph 2 of annex 6 to this Regulation;
2.5. "Principal radii of curvature at one point obtained on the reflecting surface (ri) and (r'i)" means the values obtained using the apparatus defined in annex 6, measured on the arc of the reflecting surface contained in a plane parallel to the greatest dimension of the mirror and passing through its centre and on the arc perpendicular to it;
2.6. "Radius of curvature at one point on the reflecting surface (rp)" means the arithmetic average of the principal radii of curvature ri and r'i, i.e.:
2.7. "Centre of the mirror" means the centroid of the visible area of the reflecting surface;
2.8. "Radius of curvature of the constituent parts of the rear‑view mirror" means the radius "c" of the arc of the circle which most closely approximates to the curved form of the part in question.
3.  Application for approval
3.1. The application for approval of a type of rear‑view mirror shall be submitted by the holder of the trade name or mark or by his duly accredited representative.
3.2. For each type of rear‑view mirror the application shall be accompanied by the undermentioned documents