Document ID: chunk:federal_register_of_legislation:F2006L03056:body:0:p13
Version: federal_register_of_legislation:F2006L03056
Segment Type: other
Provision Reference: 
Character Range: 36687–39820

open than the position at the time reversing was initiated.

20.3.2.6.3.              To check these devices, a measuring instrument/test rod is placed through the window 'Opening' from the inside of the vehicle such that the cylindrical surface of the rod contacts the structure which forms the boundary of the window . The force/deflection ratio of the measuring instrument/test rod must be at least 10 N/mm. Placements of the test rods are illustrated in Figure 6.
20.3.2.6.4.              The technical requirements of FMVSS 118-FR VOL36 No. 232-02.12.1971- Power Operated Window System; as amended by FMVSS 118-FR VOL58 No. 6031.03.1998 are deemed to be equivalent to the technical requirements of clause 20.3 of this national standard.

21.                                      WARNING DEVICES - AUDIBLE
21.1.                                General
21.1.1.                          No siren, repeater horn, bell, exhaust whistle or compression whistle or other device capable of producing a sound resembling that produced by any such siren, repeater horn, bell or whistle must be attached to a motor
vehicle other than an emergency community service vehicle.
21.1.2.                          For the purpose of this clause, a repeater horn is any device which generates an audible sound (to be emitted) alternating between different tones or frequencies on a regular time cycle.
21.2.                                Warning Device
Every motor vehicle must be fitted with a least one warning device capable of giving sufficient audible warning of the presence of the vehicle. It must give an audible signal having constant amplitude and frequency characteristics. It may be powered by any energy source including compressed air.
21.3.                                Reversing Alarm
Notwithstanding clauses 21.1 and 21.2 a further device may be fitted which when and only when reverse gear is selected emits an intermittent audible signal on a regular time cycle. It must not emit a signal louder than is necessary to warn persons of the proximity of the reversing vehicle.
21.4.                                Retractable Axle Alarm
Notwithstanding clauses 21.1 and 21.2 a further device must be fitted to vehicles equipped with a 'Retractable Axle' which emits an audible signal on the lowering of the 'Retractable Axle'. It must not be louder than is necessary to warn persons in the proximity of the 'Retractable Axle'.
22.                                      STABILITY REQUIREMENT (LEM, LEP & LEG Vehicles only)
22.1.                                For LEM1, LEP1 & LEG1 vehicles the height of the centre of mass (h) must not exceed the horizontal distance from the centre of mass to the nearest roll axis (d) (See Figure 5).
22.2.                                For LEM2, LEP2 & LEG2 vehicles the height of the centre of mass (h) must not exceed one and a half times the horizontal distance from the centre of mass to the nearest roll axis (d) (See Figure 5).
22.3.                                Test procedure for determining the vehicle's centre of mass
22.3.1.                          Unless otherwise 'Approved', the