The letter states that this loophole represents "a significant threat" to public health in the province due to the possibility of even more variants of concern entering via land borders, some of which could be vaccine-resistant.
Trudeau says he's not considering barring worldwide students from entering Canada at this point, but he's willing to work "more narrowly" with Ontario.
Canada's chief public health officer said Friday that daily COVID-19 case counts declined by seven per cent over the past week to an average of less than 7,900 infections.
In a letter to Ottawa sent Thursday, Ontario officials said there have been reports of global travellers booking flights into nearby US airports, taking a taxi to a United States-Canada land crossing and walking or driving across the border.
"My office is now working with premier Ford's office and the authorities in Ontario to do a follow up to make sure that this approach is formalized", Trudeau said.
The Ontario government wants Ottawa to impose mandatory three-day hotel quarantines at land crossings including the Blue Water Bridge. ".We have seen that this third wave is very much around community transmission". "This is not just an Ontario problem - it is a Canada-wide problem".
He called for a mandatory 14-day supervised hotel quarantine instead of the current three-day hotel stay for only air passengers.
Explained: With restrictions on global flights, what happens to your booked ticket?
India recorded almost 300,000 new cases of COVID-19 on Wednesday alone, with 2,000 more deaths linked to the virus. Pakistan's government warned this week that major cities might be closed if COVID-19 cases there keep growing.
Trudeau added that Ontario was also seeking to suspend the arrival of global students in an effort to slow the spread of COVID-19 and said Ottawa was working with the province on the issue.
"Everyone arriving in the country needs to show up with a negative PCR test from the last 72 hours, gets tested on arrival, goes into a strict quarantine for two weeks in a secure quarantine locations.and has to do a third test on day eight to ensure that they are negative", Trudeau said.
"There is a fundamental difference between someone arriving on connecting flights from anywhere around the world at our airports, which is why we have required government approved accommodations", Trudeau said.
On April 16, 2021 Ontario Premier Doug Ford presented a graph showing that COVID-19 cases could increase to 10,000 a day. He's demanding the federal government take stricter border control measures to limit the spread of COVID-19 variants of concern in Canada. If I had the power I would close down Pearson Airport immediately.
Science experts advising Ontario on the pandemic have said it's important to maintain control over entry into the province as new COVID-19 variants emerge.
But Ford said that his request goes beyond worldwide students coming into Canada. They got in because of weak border measures.