Health certificate is required for CET-4 and CET-6; In some low-risk areas, candidates need to check their health codes, travel cards and fill out health certificates before taking CET-4 and CET-6. In some places, you need to punch in the cards every day until the day before the exam; Candidates need to show it to the staff and teachers before entering the examination room.
CET-4 and CET-6 are national English tests administered by the Ministry of Education. Its purpose is to objectively and accurately measure the actual English ability of college students and provide evaluation services for college English teaching.