[Code of Federal Regulations] [Title 40, Volume 30] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR1048.425] [Page 568] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 1048_CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES--Table of Contents Subpart E_Testing In-use Engines Sec. 1048.425 What records must I keep? (a) Organize and maintain your records as described in this section. We may review your records at any time, so it is important to keep required information readily available. (b) Keep paper records of your in-use testing for one full year after you complete all the testing required for an engine family in a model year. You may use any additional storage formats or media if you like. (c) Keep a copy of the written reports described in Sec. 1048.420. (d) Keep any additional records related to the procurement process. [[Page 569]]