Only asymptomatic people considered to be at high risk, such as those living in an Aboriginal community or working in the health care system, are an exception.
People who wish to visit their loved ones in hospital or long-term care home may also be tested.
Patients who are transferred from one health or long-term care facility to another will need to be screened before admission.
In addition, the government is now forcing anyone who has been in contact with a person infected with COVID-19 to self-isolate for 14 days after the last contact, even if the asymptomatic person tested negative before this contact.
These changes were made the day after the announcement that some sixty pharmacies will begin screening asymptomatic people on Friday and in the wake of queuing and capacity issues at screening centers across the province.
According to the most recent Ontario public health data, 53,840 tests are currently under investigation.