Are dot motorcycle helmets required in Canada?

From the Snell Memorial foundation website :

"The DOT Motorcycle Helmet Standard is a mandatory minimum for headgear sold for motorcycle use throughout the United States. It is specified in most US jurisdictions where motorcycle helmet use is required. Recently, Canada also requires that motorcyclists wear either DOT or Snell certified motorcycle helmets."

The European ECE 22-05 standard is accepted in Quebec and British Colombia. The DOT standard is the US Department of Transportation, SNELL is an independent non-profit organisation, and ECE 22-05 is the European Community standard. In Canada, the CSA no longer certifies motorcycle helmets.

Each province in Canada legislates their own motorcycle helmet laws.

(Snell is not a racing approval company, just a helmet safety approval company; all of the racing organisations in North America accept the ECE 22-05 standard for racing, but they also accept Snell. And the SA approval is very similar to the M "motorcycle," the main difference is that it must also have a fire resistant lining.