http://www.legislation.gov.uk/nisr/2020/97/regulation/1/2020-10-31The Health Protection (Coronavirus, Public Health Advice for Persons Travelling to Northern Ireland) Regulations (Northern Ireland) 2020 (revoked)texttext/xmlenPUBLIC HEALTHStatute Law Database2020-12-11Expert Participation2020-10-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Citation and commencementF11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .