457.380—Eligibility verification.
        
        (a) 
         The State must establish procedures to ensure the integrity of the eligibility determination process.
    
    
        
        (b) 
         A State may establish reasonable eligibility verification mechanisms to promote enrollment of eligible children and may permit applicants and enrollees to demonstrate that they meet eligibility requirements through self-declaration or affirmation except that a State may permit self-declaration of citizenship only if the State has effective, fair and non-discriminatory procedures to ensure the integrity of the application process in accordance with  § 457.320(c).