Changes made by Council Directive 80/1180/EEC of 4 December 1980 amending, consequent on the accession of Greece, Directive 77/796/EEC aiming at the mutual recognition of diplomas, certificates and other evidence of formal qualifications for goods haulage operators and road passenger transport operators, including measures intended to encourage these operators effectively to exercise their right to freedom of establishment
EU Directive 1980/1180
No changes made by Council Directive 80/1180/EEC of 4 December 1980 amending, consequent on the accession of Greece, Directive 77/796/EEC aiming at the mutual recognition of diplomas, certificates and other evidence of formal qualifications for goods haulage operators and road passenger transport operators, including measures intended to encourage these operators effectively to exercise their right to freedom of establishment are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.