137.257—What steps must the Secretary take prior to reassumption becoming effective?
         Except as provided in  § 137.261 for immediate reassumption, prior to a reassumption becoming effective, the Secretary must:
    
    
        
        (a) 
         Notify the Self-Governance Tribe in writing by certified mail of the details of findings required under  § 137.256(a)(1) and (2) ;
    
    
        
        (b) 
         Request specified corrective action within a reasonable period of time, which in no case may be less than 45 days;
    
    
        
        (c) 
         Offer and provide, if requested, the necessary technical assistance and advice to assist the Self-Governance Tribe to overcome the conditions that  led to the findings described under (a); and
    
    
        
        (d) 
         Provide the Self-Governance Tribe with a hearing on the record as provided under Subpart P of this part.