S-6.01, r. 3 - Taxi Transportation Regulation

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31. Holders of a taxi owner’s permit must equip their taxis with a domelight that is securely fastened to the front part of the roof, unless their permit is a specialized permit.
The domelight must be made of translucent material, be equipped with an internal lighting device, and allow the taxi to be recognized when it is in service and to be identified among others in the urban area concerned.
O.C. 690-2002, s. 31.