Changes made by Council Directive of 19 December 1977 concerning mutual assistance by the competent authorities of the Member States in the field of direct taxation and taxation of insurance premiums (77/799/EEC)
EU Directive 1977/799
No changes made by Council Directive of 19 December 1977 concerning mutual assistance by the competent authorities of the Member States in the field of direct taxation and taxation of insurance premiums (77/799/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.