++++ TAX PROVISIONS - HARMONIZATION OF LAWS - TURNOVER TAXES - COMMON SYSTEM OF VALUE ADDED TAX - TAXABLE PERSONS - NOTARIES AND BAILIFFS PERFORMING THEIR OFFICIAL SERVICES - PERSONS WHO PROVIDE SERVICES IN THE EXERCISE OF A LIBERAL PROFESSION - WHETHER INCLUDED ( COUNCIL DIRECTIVE 77/388/EEC, ART . 4 ( 1 ), ( 2 ) AND ( 5 )*)