A down economy could provide a positive boost to opponents of looming targets for construction- equipment emissions in California. A new study suggests formulas that were used by the California Air Resources Board (CARB) to establish future emissions-reduction targets overestimated the levels of nitrogen oxide and particulate matter from off-road diesel equipment in the state.
The findings are based on new data released from an inventory of construction equipment currently in use in the state conducted this year by the Sacramento-based board. The Associated General Contractors of America asserts the data proves equipment users already are in compliance with emissions targets and would not need to retrofit, repower or replace equipment before 2014.