What dress codes apply to signallers and assistance coordinators?

Signallers and assistance coordinators wear a yellow retroreflective vest.

 

This vest must have the following black logo on a yellow background on the front and back:

Signallers and assistance coordinators wear a yellow retroreflective vest with logo.

At the back this logo must be 25 cm wide, at the front it must be 8 cm.

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