(a) 
         The following Maine medical device requirement is enforceable notwithstanding  section 521(a) of the act because the Food and Drug Administration has exempted it from preemption under  section 521(b) of the act: Maine Revised Statutes Annotated, Title 32,  section 1658-C, on the condition that, in enforcing this requirement, Maine apply the definition of “used hearing aid” in  § 801.420(a)(6) of this chapter.
     
    
        
        (b) 
         The following Maine medical device requirement is preempted by  section 521(a) of the act, and the Food and Drug Administration has denied it an exemption from preemption under  section 521(b) of the act: Maine Revised Statutes Annotated, Title 32,  section 1658-D and the last sentence of  section 1658-E.
     
    
        
            Code of Federal Regulations
        
        [45 FR 67336, Oct. 10, 1980]