| Classification of Types of Constructions (CZ-CC) - level 3 - Group | 221 | Long-distance pipelines, communication and electricity lines | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221311 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221319 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221321 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221329 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221331 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221338 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221341 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221349 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221391 |  | 
                
                  
                    | Classification of Types of Constructions (CZ-CC) - level 5 - Sub-class | 221392 |  |