Changes to Billing Authorities (Alteration of Requisite Calculations) 1992
S.I. 1992/2429
Made by Billing Authorities (Alteration of Requisite Calculations and Transitional Reduction Scheme) 1993
1 change. All changes to Billing Authorities (Alteration of Requisite Calculations) 1992
From legislation.gov.uk's record of changes, the official one: see it there.