416.907—Disability under a State plan.
         You will also be considered disabled for payment of supplemental security income benefits if—
    
    
        
        (a) 
         You were found to be permanently and totally disabled as defined under a State plan approved under title XIV or XVI of the Social Security Act, as in effect for October 1972;
    
    
        
        (b) 
         You received aid under the State plan because of your disability for the month of December 1973 and for at least one month before July 1973; and