[Code of Federal Regulations] [Title 40, Volume 20] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR89.111] [Page 53] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 89_CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES--Table of Contents Subpart B_Emission Standards and Certification Provisions Sec. 89.111 Averaging, banking, and trading of exhaust emissions. Regulations regarding the availability of an averaging, banking, and trading program along with applicable record- keeping requirements are found in subpart C of this part. Participation in the averaging, banking, and trading program is optional. [59 FR 31335, June 17, 1994. Redesignated at 63 FR 56995, Oct. 23, 1998]