Introductory Text1.Citation and commencement2.Amendments of Schedule 8 to the principal Regulations (specified requirements for practical or unitary test)3.For Part 5 of Schedule 8 to the principal Regulations.SignatureSCHEDULESUBSTITUTION OF PART 5 OF SCHEDULE 8 TO THE PRINCIPAL REGULATIONSExplanatory Note