[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: 40CFR91.119]

[Page 308]
 
                   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. 91.119  Certification procedure--use of special test procedures.

    (a) Use of special test procedures by EPA. The Administrator may 
establish special test procedures for any engine that the Administrator 
determines is not susceptible to satisfactory testing under the 
specified test procedures set forth in subpart E of this part.
    (b) Use of alternative test procedures by an engine manufacturer. 
(1) A manufacturer may elect to use an alternative test procedure 
provided that it yields results equivalent to the results from the 
specified test procedure in subpart E, its use is approved in advance by 
the Administrator, and the basis for equivalent results with the 
specified test procedures is fully described in the manufacturer's 
application.
    (2) An engine manufacturer electing to use alternate test procedures 
is solely responsible for the results obtained. The Administrator may 
reject data generated under test procedures which do not correlate with 
data generated under the specified procedures.