901.11—Use and disclosure of mailing addresses.
        
        (a) 
         When attempting to locate a debtor in order to collect or compromise a debt under  parts 900-904 of this chapter or other authority, agencies may send a request to the Secretary (or designee) to obtain a debtor's mailing address from the records of the Internal Revenue Service.
    
    
        
        (b) 
         Agencies are authorized to use mailing addresses obtained under paragraph (a) of this section to enforce collection of a delinquent debt and may disclose such mailing addresses to other agencies and to collection agencies for collection purposes.