[Code of Federal Regulations]
[Title 40, Volume 31]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR1048.140]

[Page 561]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 1048_CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD 
SPARK-IGNITION ENGINES--Table of Contents
 
          Subpart B_Emission Standards and Related Requirements
 
Sec.  1048.140  What are the provisions for certifying Blue Sky Series engines?

    This section defines voluntary standards for a recognized level of 
superior emission control for engines designated as ``Blue Sky Series'' 
engines. Blue Sky Series engines must meet one of the following 
standards:
    (a) For the 2003 model year, to receive a certificate of conformity, 
a ``Blue Sky Series'' engine family must meet all the requirements in 
this part that apply to 2004 model year engines. This includes all 
testing and reporting requirements.
    (b) For the 2003 through 2006 model years, to receive a certificate 
of conformity, a ``Blue Sky Series'' engine family must meet all the 
requirements in this part that apply to 2007 model year engines. This 
includes all testing and reporting requirements.
    (c) For any model year, to receive a certificate of conformity as a 
``Blue Sky Series'' engine family must meet all the requirements in this 
part while certifying to one of the sets of exhaust emission standards 
in the following table:

   Table 1 of Sec.  1048.140--Long-Term Standards for Blue Sky Series
                            Engines (g/kW-hr)
------------------------------------------------------------------------
   Standards for steady-state and         Standards for field-testing
      transient test procedures                   procedures
------------------------------------------------------------------------
      HC+NOX               CO              HC+NOX              CO
------------------------------------------------------------------------
         0.80                4.4              1.10               6.6
         0.60                4.4              0.84               6.6
         0.40                4.4              0.56               6.6
         0.20                4.4              0.28               6.6
         0.10                4.4              0.14               6.6
------------------------------------------------------------------------

    (d) If you certify an engine family under this section, it is 
subject to all the requirements of this part as if these voluntary 
standards were mandatory.

[67 FR 68347, Nov. 8, 2002, as amended at 70 FR 40470, July 13, 2005]