Aviation Minister Prasanna Ranatunga said all passengers arriving on the island will be subjected to PCR testing at the airport.
The decision has been made after a large number of returnees from foreign countries were diagnosed with COVID19.
Aviation authorities said this would help the health officials identify infected patients immediately after their return to the country.
Two military officers who handled foreign returnees at the airport have been diagnosed with COVID19.
The government also plans to reopen airport for tourists on August 01 with testing facilities at the airport.