416.1170—General.
        
        (a) What the alternative is.
         If you are blind and meet the requirements in  § 416.1171, we use one of two rules to see how much countable income you have. We use whichever of the following rules results in the lower amount of countable income:
    
    
    
    
        
        (b) State plan.
         As used in this subpart, State plan for October 1972 means a State plan for providing assistance to the blind under title X or XVI (AABD) of the Social Security Act. That plan must have been approved under the provisions of 45 CFR chapter II as in effect for October 1972.