   UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

        ANN ARBOR, MI 48105

March 13, 2007

                                                                        
                                        	      			                    
OFFICE OF 	                                                             
                                                                        
                       	               									             AIR AND
RADIATION

MEMORANDUM

SUBJECT:	Incorporation by Reference of Rulemaking Docket
EPA-HQ-OAR-2003-0045.

FROM:	Mike Samulski

		  SEQ CHAPTER \h \r 1 Assessment and Standards Division

TO:		Public Docket EPA-HQ-OAR-2007-0121

The current emission standards for new compression-ignition marine
engines with per cylinder displacement at or above 30 liters per
cylinder were adopted in 2003 (see 68 FR 9746, February 28, 2003).  This
advance notice of proposed rulemaking relies in part on information that
was obtained for that rule, which can be found in Public Docket
EPA-HQ-OAR-2003-0045.  Consequently, the contents of
EPA-HQ-OAR-2003-0045 are incorporated by reference into this Docket
EPA-HQ-OAR-2007-0121.

