If you have not yet taken this ''The Environmental protection and safety Course'', you are required to take this class in the designated period. Keep note that taking safety course is one of eligibilities for QT.
Those who want to apply for QT in March. 2021 must take safety course this time.
I advise you to get some help from one of your Korean labmates since attached manual is in Korea.

Application for the safety course	Time table for online safety course			How to get issued for certificate of safety course
Feb. 8 ~ Feb. 18	1차	E class is in English for foreign students	March 4-March 6	Certificate for safety course will be issued through safe site starting from April 12
Log in safety site referring to attached manual.	2차	class in Korean if you want to check this schedule, refer to the site below. https://ece.snu.ac.kr/community/notice/academic?bm=v&bbsidx=50960
Safety course applications must be made twice which means you have to proceed two kinds of applications.   First thing you have to do is the application for safety course during Feb.8-Feb.18 안전환경 신규교육(집합) 신청 Second thing you have to do is application for taking the safety course by online during March 4 – March 6. For exaple, during E course period(March 4 to March 6), you have to access to  http://rsis.snu.ac.kr  and register once again and take the course at the same time. click 안전교육 => click 온라인안전교육 => click 수강신청 please, Refer to attached manual file. 온라인강좌(온라인 안전교육) 수강신청=>[붙임2] 참조	3차	class in Korean if you want to check this schedule, refer to the site below. https://ece.snu.ac.kr/community/notice/academic?bm=v&bbsidx=50960
	Log in safe site -> taking the class / refer to the attached manual file.
SAFE(연구안전통합정보시스템) 접속방법/ how to access to safe site http://my.snu.ac.kr ->click「연구지원(또는 학술연구)-연구안전(SAFE)」   or http://rsis.snu.ac.kr