[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: 40CFR1048.5] [Page 551] 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 A_Overview and Applicability Sec. 1048.5 Which engines are excluded from this part's requirements? This part does not apply to the following nonroad engines: (a) Engines that are certified to meet the requirements of 40 CFR part 1051, or are otherwise subject to 40 CFR part 1051 (for example, engines used in snowmobiles and all-terrain vehicles). (b) Propulsion marine engines. See 40 CFR part 91. This part applies with respect to auxiliary marine engines. [70 FR 40465, July 13, 2005]