介绍性文本1.引用、开始和解释2.主要GB法规第1条的修订3.主要GB法规第3条的修订4.法规第4条的替代，主要GB法规的5和6 5.主要GB法规第7条的修订6.主要GB法规第7A条的插入7.主要NI法规第1条的修订8.主要NI法规第3条的修订9.法规4的替换，主要NI法规5和6 10.主要NI法规7的修订11.插入主要NI法规7A的说明

Introductory Text1.Citation, commencement and interpretation2.Amendment of regulation 1 of the principal GB Regulations3.Amendment of regulation 3 of the principal GB Regulations4.Substitution of regulations 4, 5 and 6 of the principal GB Regulations5.Amendment of regulation 7 of the principal GB Regulations6.Insertion of regulation 7A of the principal GB Regulations7.Amendment of regulation 1 of the principal NI Regulations8.Amendment of regulation 3 of the principal NI Regulations9.Substitution of regulations 4, 5 and 6 of the principal NI Regulations10.Amendment of regulation 7 of the principal NI Regulations11.Insertion of regulation 7A of the principal NI RegulationsSignatureExplanatory Note