Changes made by Council Directive of 12 October 1971 on the approximation of the laws of the Member States relating to the calibration of the tanks of vessels (71/349/EEC)
EU Directive 1971/349
No changes made by Council Directive of 12 October 1971 on the approximation of the laws of the Member States relating to the calibration of the tanks of vessels (71/349/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.