
𝐓𝐡𝐞 𝐀𝟏 𝐚𝐧𝐝 𝐒𝟏 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞𝐬 are related to healthcare coverage for individuals within the 𝐄𝐮𝐫𝐨𝐩𝐞𝐚𝐧 𝐔𝐧𝐢𝐨𝐧 (𝐄𝐔) and the European Economic Area (EEA). However, they serve different purposes and have different statuses. 𝟏.𝐀𝟏 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞 (𝐟𝐨𝐫𝐦𝐞𝐫𝐥𝐲 𝐄𝟏𝟎𝟏 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞): The A1 certificate, formerly known as the E101 certificate, is a document that proves the social security legislation applicable to an employee working temporarily in another EU/EEA country. It certifies that the holder remains subject to the social security legislation of their home country while working temporarily in another EU/EEA country. The purpose of the A1 certificate is to prevent double social security contributions and ensure that individuals are covered by only one country's social security system. The status of an A1 certificate indicates that the individual is covered by the social security system of their home country while working tempo...