1.Where it gives rise to successive statements of account or successive payments, the supply of goods, other than that consisting in the hire of goods for a certain period or the sale of goods on deferred terms, as referred to in point (b) of Article 14(2), or the supply of services shall be regarded as being completed on expiry of the periods to which such statements of account or payments relate.
2.Member States may provide that, in certain cases, the continuous supply of goods or services over a period of time is to be regarded as being completed at least at intervals of one year.