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Mandatory mask use and COVID-19

Mandatory Mask Letter of Instruction for Employers and Businesses

Under instructions issued by the Medical Officer of Health, all businesses and organizations in the Northwestern Health Unit area must adopt a policy that requires all members of the public and employees who enter or remain in an enclosed public space to wear a mask or face covering. This policy will be effective Monday August 17, 2020 at 12:01 am.

Sample Policy

A sample policy is available for businesses and organizations to adapt and use.

In addition to having a policy requiring masks, businesses and organizations must:

  • Train their employees on the requirements of the policy and how to implement it
  • Post signs to remind employees and customers about the requirement to mask
  • Ask everyone to wear a mask if they enter your space without one, or if they remove their mask for an extended period of time while in the establishment.
  • Have a handwashing / sanitizing station at all entrances for people to use.
  • Be able to provide a copy of the policy upon request to a public health inspector or other person authorized to enforce the provisions of the Reopening Ontario Act (ROA)



The following posters should be printed off and posted in the entrance of your place of business: