Employers are required to post and provide employees with of copy of the most recent version (7.0) of the Employment Standards Poster published by the Minister of Labour in the workplace where it is likely to come to the attention of employees.
H&S at Work Prevention Poster
Under the Occupational Health and Safety Act (OHSA), all provincially regulated workplaces must display this poster.
In Case of Injury Poster
Under the Workplace Safety and Insurance Act, 1997, employers are required to prominently display the "In Case of Injury" Poster (Form 82) in their workplace.
This files will provide you with a list of your posting requirements under the different Legislation.