[Code of Federal Regulations] [Title 40, Volume 31] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR1051.520] [Page 653] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 1051_CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES AND VEHICLES--Table of Contents Subpart F_Test Procedures Sec. 1051.520 How do I perform exhaust durability testing? Sections 1051.240 and 1051.243 describe the method for testing that must be performed to establish deterioration factors for an engine family. [70 FR 40501, July 13, 2005]