May I drive through a tunnel when I am transporting gas cylinders in my vehicle?
In the case of class 2.1 gas cylinders C acetylene, oxygen or propane, for example C travelling in a tunnel is allowed if no more than two cylinders with a maximum water capacity of 46 litres each are being transported.
May I drive through a tunnel when transporting a class three flammable liquid in me vehicle?
You can, provided you transport no more than 30 litres of it in one or more containers.
What quantity of dangerous substances may I transport without being subject to the Regulation?
It depends. All transport of dangerous substances is governed by the Transportation of Dangerous Substances Regulation. However, under certain conditions, some types of transportation are not made subject to the regulation, the transportation of consumer goods, for example.
Since there is no easy answer to this question, you should reach Transports Québec’s information service by calling 511 from anywhere in Québec or 1 888 355-0511 from anywhere else in North America.