介绍性文本1.引证、生效和延期2.对《20013年药物滥用条例》的修订。对于条例4B，用γ-丁内酯和1,4-丁二醇（1）γ-丁内酯和1，4-丁二醇不包括在附表1第1（a）段第3（1）节（进口4）（其中规定了受管制药物）中。附表2第1段第5（其中规定了受管制药物）。6.撤销7.条例3第（a）段滥用药物。签署解释性说明

Introductory Text1.Citation, commencement and extent2.Amendments to the Misuse of Drugs Regulations 20013.For regulation 4B, substitute— Exceptions for gamma–butyrolactone and 1,4–butanediol (1) Gamma–butyrolactone and 1,4–butanediol are excepted from sections 3(1) (import.4.In paragraph 1(a) of Schedule 1 (which specifies controlled drugs.5.In paragraph 1 of Schedule 2 (which specifies controlled drugs.6.Revocations7.Paragraph (a) of regulation 3 of the Misuse of Drugs.SignatureExplanatory Note