There are two possible outcomes for passengers who fail to obtain PCR tests prior to departure, Garneau said in an interview with CBC News.
"One is, if they haven't got the test result and there are clinics available, they will have to reschedule their departure because they won't be allowed on board," he said. "If, on the other hand, they can demonstrate ... that there was no facility, then they can be admitted onboard."
Travellers who can prove that they were unable to get a test abroad will have to quarantine at a federally-approved facility upon their return for 14 days.