Jim Lyons is Director of Trinity Consultants’ Mobile Source and Fuels Services business line and is based in the Phoenix, Arizona office. He brings over 40 years of experience in the development, implementation, and evaluation of mobile source emissions and fuel regulatory programs at both the state and federal levels.

As leader of Trinity’s Mobile Source and Fuels team, Mr. Lyons oversees technical services related to new engine and vehicle certification, low-emission fuel strategies, and advanced control technologies. His expertise includes the Low Carbon Fuel Standard (LCFS), Renewable Fuel Standard (RFS), evaporative and refueling emissions, and greenhouse gas compliance programs. He routinely evaluates the emission impacts, costs, and cost-effectiveness of control measures across light- and heavy-duty, on-road and nonroad sources.

Mr. Lyons is nationally recognized as an authority on mobile source regulations and serves as a testifying and consulting expert in litigation involving product liability, intellectual property, and regulatory compliance. He has supported high-profile enforcement cases in the auto manufacturing and refining sectors, including international expert testimony in China.

He has authored or contributed to more than 100 technical reports and peer-reviewed publications on emissions modeling, fuel impacts, vehicle standards, and air quality strategy.

He holds an M.S. in Chemical Engineering from the University of California, Los Angeles, and a B.S. in Chemistry (Cum Laude) from the University of California, Irvine. He is a member of the Society of Automotive Engineers.