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maritime -- Agenda and Draft Regulatory Proposal for OGV Main Engine Workshop

Posted: 07 Jun 2007 08:26:24

This is to notify you that materials are now available for the
upcoming June 13th public workshop to discuss the development of
a regulation to reduce emissions from ocean-going vessel (OGV)
main engines by requiring the use of low-sulfur marine
distillate fuels.  The agenda and draft regulatory proposal can
be found at the following link:

As a reminder, the workshop will be held at the following time
and location (a live audio webcast will also be available at
http://www.calepa.ca.gov/broadcast on the date of the workshop
for those who cannot attend in person): 

Date: 	   Wednesday, June 13, 2007
Time: 	   1:30 p.m. - 4:00 p.m. (Pacific)
Location:  CalEPA Headquarters Building
	   Coastal Hearing Room
	   1001 I Street
	   Sacramento, California  95814

In developing the draft regulatory proposal, we had two main
goals: 1) implement the use of distillate fuels (marine gas oil
or marine diesel oil) in the main engines as soon as possible
resulting in significant emission reductions for California; and
2) align the regulation for main engines with the auxiliary
engine regulation to minimize the need to carry multiple fuels
and simplify implementation.  

Consistent with these goals, the proposal retains:
-  The requirement to use low sulfur marine gas oil (MGO) or
marine diesel oil (MDO) and the concept of a two-step
implementation process  a higher sulfur limit in the near-term
and ultimately the requirement to meet a 0.1% sulfur limit at a
future date.
-  The 24 nautical mile boundary for implementation consistent
with the auxiliary engine regulation.  However, it does include
a provision that requires the ARB to investigate, at a later
date, the benefits of establishing implementation boundaries
further off-shore.  
-  The provisions for alternative control of emission plans, a
safety exemption, and the non-compliance fee provision.  

The primary difference between the auxiliary engine regulation
and this proposal for main engines is with respect to the
initial sulfur limit for the fuel and the dates for
implementation.  Based on recent inspection data, we have
concerns that 0.1% sulfur distillate fuels will not be available
globally in the 2010 timeframe.  As such, the draft regulation
proposes to have an initial compliance date in 2009 with a
proposed sulfur limit in the 0.2-0.5% range; however, the actual
level will be determined during the public development process. 
The proposal also includes a future limit of 0.1% sulfur in
either 2013 or 2014 with a fuel availability review in the 2012
timeframe.  We acknowledge that this is different than the
auxiliary engine regulation which requires MGO up to 1.5%
sulfur; or MDO with a fuel sulfur level no greater than 0.5% in
2007, and 0.1% MGO in 2010.  It is our intention, based on the
outcome of this regulatory development process for the OGV main
engines, to amend the auxiliary engine rule to ensure the fuel
sulfur standards and dates of implementation are aligned between
the two regulations.  

If you have any questions about these materials, please contact
any of the following:

Bonnie Soriano (916) 327-6888 or via email at
Paul Milkey (916) 327-2957 or via email at pmilkey@arb.ca.gov
Peggy Taricco (916) 323-4882 or via email at

The presentations for the workshop and any additional materials
will be available either the day of the workshop or 1-2 days

Thank you,
Bonnie Soriano

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