Changes made by Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1990
S.I. 1990/1191
Made to Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1980
3 changes. All changes made by Goods Vehicles (Operators' Licences) (Temporary Use in Great Britain) 1990
From legislation.gov.uk's record of changes, the official one: see it there.