The U.S. EPA granted OptiFuel Systems LLC a Tier 4 rail certification for its internal combustion engine.Photo – OptiFuel Systems
The U.S. Environmental Protection Agency granted OptiFuel Systems LLC a Tier 4 rail certification for its internal combustion engine that produces zero nitrogen oxide or particulate matter emissions. The rail engine can seamlessly operate on any combination of renewable and fossil natural gas in either compressed or liquefied form, OptiFuel officials said in a press release. OptiFuel’s rail engine is identical to the California Air Resources Board-certified Cummins ISX12N engine. The engine is the only U.S. EPA rail certified prime mover that exceeds all of California's proposed standards for Tier 5, OptiFuel officials said.
STV named David Isabelle vice president and operations director of the transportation and infrastructure division’s Northeast region. Isabelle will be responsible for that group’s project and financial performance in the region, as well as its resource management, quality and safety initiatives, STV officials said in a press release. He has more than 25 years of experience. Previously, Isabelle served as senior VP and Northeast regional team leader for another planning and engineering firm.