The standard certificate of service states:
I certify that on (insert date) copies of (insert name of documents you are serving) were mailed to: * (list names and addresses of parties on whom the documents are being served and be sure to include the trustee, and U.S. Trustee).
_______________________________ Signature of person doing the mailing
*Note: in this space you may state: “the parties whose names and addresses are listed on the attached.” and attach a copy of the mailing list you used.
Mailing list: A mailing list which shows the names and addresses of all creditors and interested parties in the case is available from the clerk’s office upon request. It is formatted so that it can be copied onto labels.