Document ID: chunk:federal_register_of_legislation:F2018L01519:body:0:p8
Version: federal_register_of_legislation:F2018L01519
Segment Type: other
Provision Reference: 
Character Range: 22373–25001

or have a sharp outer edge; this condition is fulfilled when the lateral extremities of the cross‑member are rounded on the outside and have a radius of curvature of not less than 2.5 mm.
RUPD intended to be fitted on vehicles of categories M, N1, N2 with a maximum mass not exceeding 8 t, O1, O2, on vehicles of category G and on vehicles fitted with a platform lift, the cross-member shall have a section height of at least 100 mm.
7.2. The RUPD may be so designed to have several positions at the rear of the vehicle. In this event, there shall be a guaranteed method of securing it in the service position so that any unintentional change of position is precluded. The force applied by the operator to vary the position of the device shall not exceed 40 daN.
For RUPD that are designed to have several positions at the rear of the vehicle, a label shall be provided either with (a) symbol(s) or in the language(s) of the country where the device is sold to inform the operator about the standard position of the RUPD to offer effective protection against under-running.
Label minimum size: 60 x 120 mm
7.3. The RUPD shall offer adequate resistance to forces applied parallel to the longitudinal axis of the vehicle. (This shall be demonstrated in accordance with the test procedure and test conditions specified in Annex 5 to this Regulation.) The maximum horizontal deflection of the RUPD observed during and after the application of the test forces specified in Annex 5 shall be recorded on the type approval communication (Annex 1, item 8).
7.4. For vehicles fitted with a platform lift at the rear, the underrun device may be interrupted for the purposes of the mechanism. In this case, the following special requirements apply:
7.4.1. The maximum lateral clearance measured between the elements of the underrun device and the elements of the platform lift, which move through the interruption when the lift is operated and which make the interruption necessary, may amount to no more than 2.5 cm.
7.4.2. The individual elements of the underrun protection, including those outboard of the lift mechanism, where provided, shall have an effective surface area, in each case, of at least 420 cm2.
7.4.3. For cross-members with a section height of less than 120 mm, the individual elements of the underrun protection, including those outboard of the lift mechanism, where provided, shall have an effective surface area, in each case, of at least 350 cm2.
7.4.4. In the case of vehicles having a width of less than 2,000 mm and where it is impossible to achieve the requirements of paragraphs 7.4.2. and 7.4.3., the effective