Safety Commissions are executive governing bodies in charge of protecting the public from risks associated with the use of conumer products. In the USA, it's Consumer Product Safety Commision (CPSC). In the European Union it's the European Commission. In Canada, it's Health Canada.
The following marks are issued from governing bodies on headgear sold in Canada. CSA (Canada), CEII (Europe), CEN (Europe), EN (Europe), ASTM (USA) and Snell (USA).
When it comes to protecting your brain, a certification mark on the product sanctioned by a governing body is a must.