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EV.9.4.1 The vehicle must make a characteristic sound when it is Ready to Drive EV.9.4.2 The Ready to Drive Sound must be:
a. Sounded continuously for minimum 1 second and a maximum of 3 seconds
b. A minimum sound level of 80 dBA, fast weighting IN.4.6
c. Easily recognizable. No animal voices, song parts or sounds that could be interpreted as offensive will be accepted
EV.9.4.3 The vehicle must not make other sounds similar to the Ready to Drive Sound.