[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: 40CFR94.217]

[Page 627-628]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 94--CONTROL OF EMISSIONS FROM MARINE COMPRESSION-IGNITION ENGINES--
Table of Contents
 
                   Subpart C--Certification Provisions
 
Sec. 94.217  Emission data engine selection.

    (a) The manufacturer must select for testing, from each engine 
family, the engine configuration which is expected to be worst-case for 
exhaust emission compliance on in-use engines, considering all exhaust 
emission constituents and the range of installation options available to 
vessel builders. The engines selected for testing are collectively 
described as the test fleet.
    (b) Each engine in the test fleet must be constructed to be 
representative of production engines.
    (c) After review of the manufacturer's test fleet, the Administrator 
may select from the available fleet one additional test engine from each 
engine family.
    (d) Each engine selected shall be tested according to the provisions 
of Subpart B of this part.
    (e) In lieu of testing an emission data engine selected under 
paragraph (a) of this section and submitting the resulting data, a 
manufacturer may, with Administrator approval, use emission data on a 
similar engine for which certification has previously been obtained or 
for which all applicable data required under this subpart have 
previously been submitted. These data must be submitted in the 
application for certification.

[[Page 628]]

    (f) A single cylinder test engine may be used for certification of 
Tier 1 Category 3 engine families. If you use test data from a single 
cylinder test engine for certification, explain in your application how 
you have determined that such data show that the multiple cylinder 
production engines will comply with the applicable emission standards.

[64 FR 73331, Dec. 29, 1999, as amended at 68 FR 9786, Feb. 28, 2003]