Changes made by Regulation No 6/66/Euratom, 121/66/EEC of the Councils of 28 July 1966 laying down the list of places for which a rent allowance may be granted, the maximum amount of that allowance and the rules for granting it
EU Regulation No 121/1966
No changes made by Regulation No 6/66/Euratom, 121/66/EEC of the Councils of 28 July 1966 laying down the list of places for which a rent allowance may be granted, the maximum amount of that allowance and the rules for granting it are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.