CARB to curb Deisel Emissions

State regulators are cracking down on diesel emissions:

The Air Resources Board has been trying to cut auto emissions by requiring manufacturers to improve fuel efficiency, precedent-setting efforts the industry has fought in court with the support of the Bush administration.

The board on Thursday will consider similar efforts for diesel-electric locomotives and both commercial and recreational boats that use diesel fuel, expanding on existing diesel regulations that govern land-based vehicles and stationary diesel engines.

“These (pollution) sources are almost totally regulated by the feds,” said board spokesman Jerry Martin. “It would be the first time we’ve ventured in to try to set regs for watercraft and railroads. We can’t regulate their emissions – but we’re going to try to regulate their fuel.”

Railroads and refiners remain neutral at this point...