57.705—Contents of SIP Compliance Schedule required by § 57.201(d) (2) and (3).
         This section applies to smelters which are required to submit a SIP Compliance Schedule as discussed below.
    
    
        
        (a) 
         Each SIP Compliance Schedule required by  § 57.201(d) (2) and (3) must contain the following elements:
    
    
    
        
        (2) 
         Descriptions of specific process hardware to be used in achieving compliance with the SIP emission limitation including gas capacity values;
    
    
        
        (3) 
         The date by which contracts will be let or purchase orders issued to accomplish any necessary performance improvements;
    
    
    
    
    
        
        (7) 
         Any other measures necessary to assure compliance with all SIP requirements as expeditiously as practicable.
    
    
        
        (b) Operations of SCS.
         Smelters to which  § 57.705 is applicable must comply with all elements of  § 57.703.