| Title | 
                
                    Test
                    Find
                    
                    VAT Numbers format verification (GB)
                 | 
            
            
                | Expression | 
                (GB-?)?([1-9][0-9]{2}\ ?[0-9]{4}\ ?[0-9]{2})|([1-9][0-9]{2}\ ?[0-9]{4}\ ?[0-9]{2}\ ?[0-9]{3})|((GD|HA)[0-9]{3})  | 
            
            
                | Description | 
                VAT Numbers format verification (United Kingdom) with support for optional member state definition.  
  | 
            
            
                | Matches | 
                GB123 1234 12 | GBGD123 | 123 1234 12 123  | 
            
            
                | Non-Matches | 
                GB123123412 | GBGD1234 | 023 1234 12 123  | 
            
            
                | Author | 
                
                    Rating:
                        
 
                    Vassilis Petroulias
                 | 
            
            
                | Source | 
                 | 
            
            
              | Your Rating | 
              
                
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