http://www.legislation.gov.uk/uksi/2017/1075/schedule/8/paragraph/4/madeThe Ionising Radiations Regulations 2017enKing's Printer of Acts of Parliament2020-01-22HEALTH AND SAFETYThese regulations revoke and supersede the Ionising Radiations Regulations 1999.SCHEDULE 8Transitional provisions and savings4In paragraph 3 “appropriate authority” has the same meaning as set out in regulation 5(6).