Article 55
For the transactions referred to in Article 262 of Directive 2006/112/EC, taxable persons to whom a VAT identification number has been attributed in accordance with Article 214 of that Directive and non-taxable legal persons identified for VAT purposes shall be required, when acting as such, to communicate their VAT identification number forthwith to those supplying goods and services to them. The taxable persons referred to in point (b) of Article 3(1) of Directive 2006/112/EC, who are entitled to non-taxation of their intra-Community acquisitions of goods in accordance with the first paragraph of Article 4 of this Regulation, shall not be required to communicate their VAT identification number to those supplying goods to them when a VAT identification number has been attributed to them in accordance with Article 214(1)(d) or (e) of that Directive.