介绍性文本1.引用、生效、解释和扩展2.主要法规第20条的修订3.主要法规第28条的修订4.主要法规附表3的修订5.撤销签署解释性说明

Introductory Text1.Citation, commencement, interpretation and extent2.Amendment of regulation 20 of the principal Regulations3.Amendment of regulation 28 of the principal Regulations4.Amendment of Schedule 3 to the principal Regulations5.RevocationsSignatureExplanatory Note