The Commission, with the assistance of the Asylum Agency, should review the situation in third countries that have been removed from the designation as safe countries of origin or safe third countries at Union level, including where a Member State notifies the Commission that it considers, on the basis of a substantiated assessment, that, following changes in the situation of that third country, it fulfils again the conditions set out in this Regulation for being designated as safe. In such a case, Member States could only designate that third country as a safe country of origin or a safe third country at the national level as long as the Commission does not raise objections to that designation within a period of two years after the date of removal from the designation of that third country as safe third country or safe country of origin at Union level. Where the Commission considers that these conditions are fulfilled, it may propose an amendment to the designation of safe third countries or safe countries of origin at Union level so as to add the third country.