Changes to Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1980
S.I. 1980/637
Made by Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1983
2 changes. All changes to Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1980
From legislation.gov.uk's record of changes, the official one: see it there.