Pennsylvania Certification Regarding Service of Amended Chapter 13 Plan is a document used to certify service of the amended Chapter 13 plan to all parties involved in the bankruptcy case. It is required by the U.S. Bankruptcy Court for the Eastern District of Pennsylvania. The document must be signed by the trustee or other authorized representative, and a copy must be filed with the bankruptcy court. There are two types of Pennsylvania Certification Regarding Service of Amended Chapter 13 Plan: 1) The certification of service to creditors, and 2) The certification of service to parties in interest. The certification of service to creditors must include the name of the debtor, the date the amended plan was served, the manner of service, and the names of all creditors and parties in interest who were served. The certification of service to parties in interest must include the name of the debtor, the date the amended plan was served, the manner of service, the names of all parties in interest who were served, and the date the amended plan became effective.