12th Session of the General Conference
                                    
                            
                        
                        
                     
                  
                    
                        
                        
                        
                        
                        
                            
                                 
                                                                        1st Session of the General Conference
                                    
                            
                        
                        
                     
                  
                    
                        
                        
                        
                        
                        
                            
                                 
                                                                        3rd Session of the General Conference
                                    
                            
                        
                        
                     
                              
            
                   
                    
                   
                    
                   
                    
                        
                        
                        
                        
                        
                            
                                 
                                                                        20th Session of the Administrative Council
                                    
                            
                        
                        
                     
                              
            
              
                    
                  
                    
                        
                        
                        
                        
                        
                            
                                 
                                                                        announces its 13th International Scientific Symposium entitled "Sustainable Waste Management"