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Hello ARB;
 
A simple question that has always baffled me when i hear
discussions about the air quality in the basin and particularly at
the ports. 

The talk has been around converting the trucks to natural gas to
the tune of thousands of dollars per truck.
California has already performed air quality tests for the use of
bio-diesel and reports a 95% cleaner burn than Diesel.
So why is it not suggested that all trucks use bio-diesel or at the
least 50% bio-diesel when in the basin or port vacinity?
No modifications have to be made to use it.
Thanks for your time and any info. you can offer.
Jim.