[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR511.13] [Page 37] TITLE 49--TRANSPORTATION OF TRANSPORTATION PART 511--ADJUDICATIVE PROCEDURES--Table of Contents Subpart B--Pleadings; Form; Execution; Service of Documents Sec. 511.13 Amendments and supplemental pleadings. Whenever determination of a controversy on the merits will be facilitated thereby, the Presiding Officer upon motion, may allow appropriate amendments and supplemental pleadings which do not unduly broaden the issues in the proceeding or cause undue delay.