725.217—Determination of dependency; surviving divorced spouse.
         An individual who is the miner's surviving divorced spouse (see  § 725.216) shall be determined to have been dependent on the miner if, for the month before the month in which the miner died:
    
    
        
        (a) 
         The individual was receiving at least one-half of his or her support from the miner (see  § 725.233(g) ); or
    
    
        
        (b) 
         The individual was receiving substantial contributions from the miner pursuant to a written agreement (see  § 725.233(c) and (f) ); or
    
    
        
        (c) 
         A court order required the miner to furnish substantial contributions to the individual's support (see  § 725.233(c) and (e) ).