http://www.legislation.gov.uk/uksi/1985/718/madeThe Telecommunication Apparatus (Bell Noise—Labelling) Order 1985enKing's Printer of Acts of Parliament1985-05-16 The Telecommunication Apparatus (Bell Noise—Labelling) Order 1985OrderThe Radio Equipment and Telecommunications Terminal Equipment Regulations 2000reg. 1(2)reg. 1(1)