http://www.legislation.gov.uk/uksi/1973/1593/article/17/made
The Local Government (Petty Sessional Divisions etc.) Order 1973
Westlaw
King's Printer of Acts of Parliament
2011-05-20
LOCAL GOVERNMENT, ENGLAND AND WALES
Article 3 of this Order provides, with effect from 1st April 1974, for the division of non-metropolitan counties and metropolitan districts established by the Local Government Act 1972 into petty sessional divisions.
17
The orders specified in Schedule 4 to this Order are hereby revoked.