2570.84—Payment of civil penalty.
        
        (b) 
         At any time prior to the expiration of the payment period for the assessed penalty, any person who has committed, or knowingly participated in, a breach or violation, or has been alleged by the Secretary to have so committed or participated, may submit a written request for a conference with the Secretary to discuss the calculation of the assessed penalty. A person will be entitled under this section to one such conference per assessment. If such written request is submitted during the 60 day payment period described in subparagraph (a), such a request will not toll the running of that payment period.
    
    
        
        (c) 
         The notice of assessment will become a final order (within the meaning of 5 U.S.C. 704) on the first day following the 60 day payment period, subject to any tolling caused by a petition to waive or reduce described in  § 2570.85.