Ontario's borders with Quebec and Manitoba fully reopen today.
A provincial order restricting interprovincial travel between those provinces expired at midnight.
The regulation was introduced in April as Ontario battled a third wave of COVID-19.
It applied to land and water borders.
Travel between the regions was limited to essential reasons such as health care, custody or compassionate grounds like attending a funeral.
It also allowed law enforcement to stop and question people about their reasons for entering Ontario.