| Title | 
                
                    Test
                    Find
                    
                    Accounts Office Reference
                 | 
            
            
                | Expression | 
                [0-9]{3}P[A-Z][0-9]{7}[0-9X]  | 
            
            
                | Description | 
                HMRC Accounts Office Reference (AORef) in format 
3digits, the letter P and another letter followed by 7 digits and either an 8th digit or letter X  | 
            
            
                | Matches | 
                123PA12345678|451PW1234523X  | 
            
            
                | Non-Matches | 
                A01PA12345678|123RA1234567X  | 
            
            
                | Author | 
                
                    Rating:
                        
Not yet rated.
                    PJWhitfield
                 | 
            
            
                | Source | 
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