| 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.  
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                | Matches | GB123 1234 12 | GBGD123 | 123 1234 12 123 | 
            
                | Non-Matches | GB123123412 | GBGD1234 | 023 1234 12 123 | 
            
                | Author | Rating:  Vassilis Petroulias | 
            
                | Source |  | 
            
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