[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: 40CFR91.116]

[Page 306]
 
                   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. 91.116  Certification procedure--test engine selection.

    (a) The manufacturer must select, from each engine family, a test 
engine of a configuration that the manufacturer deems to be most likely 
to exceed the Family Emission Limit (FEL).
    (b) At the manufacturer's option, the criterion for selecting the 
worst case engine may be that engine configuration which has the highest 
weighted brake-specific fuel consumption over the appropriate engine 
test cycle.
    (c) The test engine must be constructed to be representative of 
production engines.