[Code of Federal Regulations] [Title 40, Volume 18] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR91.103] [Page 301] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 91--CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES--Table of Contents Subpart B--Emission Standards and Certification Provisions Sec. 91.103 Averaging, banking, and trading of exhaust emission credits. Regulations regarding averaging, banking, and trading provisions along with applicable recordkeeping requirements are found in subpart C of this part.