736.15—Implementation, enforcement, and maintenance of a Federal program.
        
        (a) 
         The Director shall implement, administer, enforce, and maintain a Federal program or any revision thereto not later than 30 days after a Federal program is promulgated or revised.
    
    
        
        (b) 
        
        (1) 
         Except as provided in pargraph (b)(2) of this section, the Director shall implement the procedures and criteria of a Federal program for a State for designating lands unsuitable for all or certain types of surface coal mining one year after a Federal program is made effective for a State.
    
    
        
        (2) 
         When a complete or partial Federal program is promulgated because of a State's failure to implement, maintain, or enforce adequately all or a part of its State program, all applicable portions of the Federal program for the State under this part shall be effective immediately upon implementation of the Federal program.