216.68—Disability period for widow(er), surviving divorced spouse, or remarried widow(er).
         A widow(er), surviving divorced spouse, or remarried widow(er) who has a disability as defined in  part 220 of this chapter is eligible for an annuity only if the disability began before the end of a period which:
    
    
    
    
        
        (2) 
         The last month for which the widow(er) or surviving divorced spouse was entitled to an annuity for having the employee's child in care; or
    
    
        
        (3) 
         The last month for which the widow(er) or surviving divorced spouse was entitled to a previous annuity based on disability; and
    
    
    
        
        (1) 
         The month before the month in which the widow(er) or surviving divorced spouse or remarried widow(er) become 60 years old; or
    
    
        
        (2) 
         The last day of the last month of a 7-year period (84 consecutive months) following the month in which the period began.