(a) 
         The Administrator will calculate the annual allowance allocation for a combustion source based on the data, corrected as necessary, under  § 74.20 through  § 74.25 as follows:
     
    
        
        (1) 
         For combustion sources for which the current promulgated SO2 emissions limit under  § 74.25 is greater than or equal to the current allowable SO2 emissions rate under  § 74.24, the number of allowances allocated for each year equals:
     
    
        
        (2) 
         For combustion sources for which the current promulgated SO2 emissions limit under  § 74.25 is less than the current allowable SO2 emissions rate under  § 74.24.
     
    
        
        (i) 
         The number of allowances for each year ending prior to the effective date of the promulgated SO2 emissions limit equals:
     
    
        
        (ii) 
         The number of allowances for the year that includes the effective date of the promulgated SO2 emissions limit and for each year thereafter equals:
     
    
        
            Code of Federal Regulations
        
        [60 FR 17115, Apr. 4, 1995, as amended at 63 FR 18841, Apr. 16, 1998]