Two air quality programs designed to lower emissions from older diesel engines were included in a major legislative package signed into law by California Governor Jerry Brown.
“The $2 billion ten-year package included continued funding for two major California clean diesel programs – the Carl Moyer Memorial Air Quality Standards Attainment Program and AB 923 which supports local air district program to reduce diesel emissions,” said Ezra Finkin, policy director of the Diesel Technology Forum.
The Carl Moyer Memorial Air Quality Standards Attainment Program was first implemented in 1998 and has replaced or upgraded 48,000 diesel engines resulting in a reduction of 146,000 tons of ozone forming compounds and 6,000 tons of particulate matter or soot. AB 8, signed by Governor Brown, extends funding for the program through 2023.
"Emissions from new heavy-duty diesel trucks and buses have been reduced by 99 percent for nitrogen oxides – a smog precursor – and 98 percent for particulate emissions," Finkin said. "It would take 60 diesel 2010 trucks to equal particulate matter emissions from one pre-1988 truck. Similar changes are now taking place for new equipment used in farming and construction operations as well.”
Finkin said it was important to note the cooperation for the California business community in achieving the clean air improvements under the Carl Moyer Program.
“The success of Moyer is also due to thousands of California businesses–truckers, contractors, farmers and others who took the initiative to upgrade their equipment and invest in cleaner diesel and alternative fuel technology,” Finkin said.