| H1 |                             string
 |                                         H1 [(Helicopter) rescue and fire category 1..]  
[note: (ICAO) Up to but not including 15m in length. .] |         
                              | 
                            
        
                            | H2 |                             string
 |                                         H2 [(Helicopter) rescue and fire category 2..]  
[note: (ICAO) From 15m up to but not including 24m in length. .] |         
                              | 
                            
        
                            | H3 |                             string
 |                                         H3 [(Helicopter) rescue and fire category 3..]  
[note: (ICAO) From 24m up to but not including 35m in length. .] |         
                              | 
                            
        
                            | A1 |                             string
 |                                         A1 [(Aircraft) rescue and fire category 1..]  
[note: (ICAO, NATO) 0 up to but not including 9m over-all length and 2m maximum fuselage width. .] |         
                              | 
                            
        
                            | A2 |                             string
 |                                         A2 [(Aircraft) rescue and fire category 2..]  
[note: (ICAO, NATO) 9m up to but not including 12m over-all length and 2m maximum fuselage width. .] |         
                              | 
                            
        
                            | A3 |                             string
 |                                         A3 [(Aircraft) rescue and fire category 3..]  
[note: (ICAO, NATO) 12m up to but not including 18m over-all length and 3m maximum fuselage width. .] |         
                              | 
                            
        
                            | A4 |                             string
 |                                         A4 [(Aircraft) rescue and fire category 4..]  
[note: (ICAO, NATO) 18m up to but not including 24m over-all length and 4m maximum fuselage width. .] |         
                              | 
                            
        
                            | A5 |                             string
 |                                         A5 [(Aircraft) rescue and fire category 5..]  
[note: (ICAO, NATO) 24m up to but not including 28m over-all length and 4m maximum fuselage width. .] |         
                              | 
                            
        
                            | A6 |                             string
 |                                         A6 [(Aircraft) rescue and fire category 6..]  
[note: (ICAO, NATO) 28m up to but not including 39m over-all length and 5m maximum fuselage width. .] |         
                              | 
                            
        
                            | A7 |                             string
 |                                         A7 [(Aircraft) rescue and fire category 7..]  
[note: (ICAO, NATO) 39m up to but not including 49m over-all length and 5m maximum fuselage width. .] |         
                              | 
                            
        
                            | A8 |                             string
 |                                         A8 [(Aircraft) rescue and fire category 8..]  
[note: (ICAO, NATO) 49m up to but not including 61m over-all length and 7m maximum fuselage width. .] |         
                              | 
                            
        
                            | A9 |                             string
 |                                         A9 [(Aircraft) rescue and fire category 9..]  
[note: (ICAO, NATO) 61m up to but not including 76m over-all length and 7m maximum fuselage width. .] |         
                              | 
                            
        
                            | A10 |                             string
 |                                         A10 [(Aircraft) rescue and fire category 10.]  
[note: 76m up to but not including 91m over-all length and 8m maximum fuselage width. .] |         
                              | 
                            
        
                            | OTHER |                             string
 |                                         OTHER [Other rescue and fire fighting category.]  |         
                              |