CSA, as an independent nonprofit private organization, was established based on Dominion act on 1919 with the purpose of providing certification services in accordance with CSA standards in order to secure people's safety and to seek convenience for government and industry
Each province in Canada makes its own law like USA, thus Canada has dual structure of federal law and provincial law. However, unlike USA, each province puts in their provincial regulation that electrical appliances must comply with CSA safety standards.
Major items required compulsory CSA certification are electric appliances, electric machinery, electric component, materials and gas, petroleum and gas burner. Low voltage electric appliances by battery are not included. In case that above CSA required products are displayed or offered for sale without provincial approval test, it is supposed to be punished severely by law.
Canada has, unlike other countries, has two situations of having to acquire certification of CSA and approval from the provincial testing authority. The differences between the two are as follows: