Document ID: chunk:federal_register_of_legislation:F2015C00542:front:0:p9
Version: federal_register_of_legislation:F2015C00542
Segment Type: other
Provision Reference: 
Character Range: 26170–29106

of the glazing preventing light transmission, including any screen-printed area, whether solid or dot-printed, but excluding any shade band.
2.25. "Shade band" means any area of the glazing with a reduced light transmittance, excluding any opaque obscuration.
2.26. "Transparent area of the windscreen" means the glazing area contained within the design glass outline, excluding any allowed opaque obscuration (see Annex 18), but including any shade band.
2.27. "Design glass outline" means the design maximum unobstructed vehicle aperture designated to be glazed, before the glazing is installed or mounted, including all trims, but excluding obscuration bands.
2.28. "Optical distortion" means an optical defect in a windscreen that changes the appearance of an object viewed through the windscreen.
2.29. "Secondary image" means a spurious or ghost image, in addition to the bright primary image, usually seen at night when the object being viewed is very bright in relation to its surroundings, for example, the headlights of an approaching vehicle.
2.30. "Secondary image separation" means the angular distance between the position of the primary and secondary images.
2.31. "Regular light transmittance" means light transmittance measured perpendicularly to the glazing.
2.32. "Design seat-back angle" means the angle between the vertical line through the R point and the torso line defined by the vehicle manufacturer.
2.33. "Sample" means a specially prepared piece of glazing representative of a finished product or a piece cut from a finished product.
2.34. "Test piece" means a sample or a finished product of glazing.
2.35. "Type of vehicle", as regards the installation of safety glazing, means vehicles belonging to the same category which do not differ in at least the following essential respects:
 (a) The manufacturer;
 (b) The manufacturer's type designation;
 (c) Essential aspects of construction and design.
2.36. "Central driving position" is defined when Y co-ordinate of the R point is in Y0 position within + or –60 mm.
  3.  Application for approval
3.1. Approval for a type of glazing
 The application for approval of a type of glazing shall be submitted by the manufacturer or by his duly accredited representative in the country where the application is made.
3.2. For each type of glazing the application shall be accompanied by the undermentioned documents in triplicate and by the following particulars:
3.2.1. A technical description comprising all principal and secondary characteristics, and
3.2.1.1. In the case of glazings other than windscreens, diagrams in a format not exceeding A4 or folded to that format showing:
 The maximum area,
 The smallest angle between two adjacent sides of the piece,
 The greatest height of segment, where applicable.
3.2.1.2. In the case of windscreens,
3.2.1.2.1. A list of the models of windscreens for which approval is sought, specifying the name of the vehicle