I didn’t know that I cannot edit posts after 2 days.
NIA is a part of MOI, but better to be listed separately.
National Immigration Agency, Ministry of the Interior – Act & Regulations
內政部移民署 – 移民署法規
https://www.immigration.gov.tw/lp.asp?ctNode=30026&CtUnit=16705&BaseDSD=7&mp=2
*If you understand Chinese, Chinese version is more convenient.
Law Source Retrieving System of NIA
移民署法規查詢系統
http://law.immigration.gov.tw/immigr-law/index.jsp