This Ministry, in its original form, was established in 1919 and enforces Ontario's labour legislation.
Employment and Social Development Canada (ESDC) is the department of the Government of Canada that oversees labour and employment legislation, as well as a variety of other social programs and services. See their reports here.
The federal Labour Program oversees workers and employers in federally regulated sectors.
The following is a list of some of the relevant Ontario legisalation for the HRM field. Find additional consolidated legislation and regulations for Ontario at eLaws.
The following is a list of some of the relevant federal legisalation for the HRM field. Find additional consolidated legislation and regulations for Canada at the Department of Justice's website.