Regulation 1 I1 United Kingdom Original text. Later amendments are not shown. These Regulations may be cited as the Crystal Glass (Descriptions) Regulations 1973, and shall come into operation on 19th December 1973. Annotations Commencement I1 Reg. 1 in force at 19.12.1973, see reg. 1 ← Introduction Regulation 1 Regulation 2 →