New federal standards for diesel engines take effect Oct. 1, 2002, and impose substantial penalties for engine makers engine makers whose new engine designs fail to meet emission standards. A California Environmental Protection Agency spokesman indicated the state is considering its own options, and that no decision has been made on instituting state penalties for diesel engine manufacturers. According to Cal EPA Communications Director Jerry Martin, ‘‘We don’t want to reward bad behavior by simply putting a fine on an engine and allow companies to sell their engines here.’’ Because California established a precedent for air quality regulation and penalties, it is the only state that can impose stricter air quality rules than federal standards and impose penalties of its own. All engine manufacturers are required to submit their new diesel engine models for testing, and to date, Cummins Inc. is the only company to have received federal and state certification as the October deadline approaches. For more information on Cummins, go to www.cummins.com.
California Considers Engine Rules, Penalties
New federal standards for diesel engines take effect Oct. 1, 2002, and impose substantial penalties for engine makers engine makers whose new engine designs fail to meet emission standards. A California Environmental Protection Agency spokesman indicated the state is considering its own options, and that no decision has been made on instituting state penalties for diesel engine manufacturers.
More Fuel

May Fuel Update: Prices Spike Again Across the Nation
Fuel prices have risen in all 50 states, with the average increasing by almost 39 cents.
Read More →
April Fuel Update: Prices Climb Above $4 as Spring Surge Accelerates
National average jumps to $4.04 per gallon, up sharply from last year, with West Coast prices topping $5 and further increases expected amid rising oil tensions.
Read More →
Tips from Fleet Managers on Saving Fuel Costs
Fleet leaders share practical strategies to reduce fuel spend through smarter policy, routing, and driver guidance.
Read More →
March Fuel Update: Prices Settle With a $4 Average
Fuel prices significantly slowed this week, but a $4 national average is still expected.
Read More →Bob Adamsky on Fuel Volatility: “Don’t Panic — Have a Plan”
With oil prices rising again, AWP Safety’s fleet manager shares how to respond to rising fuel costs and how the right strategy can turn fuel spikes into cost-saving opportunities.
Read More →
Oil Market Turbulence Is Complicating Fleet Cost Planning
Rapid swings in crude oil prices driven by the conflict in the Middle East could create longer-term cost pressures for fleets, affecting fuel prices, supply chains, and vehicle strategy, says NTEA’s Andrew Wrobel.
Read More →Artificial Intelligence in Field Service: North America
48% of field service leaders are investing in AI to manage customer communication and self-service. Get the latest on how fleets are using AI and thinking about the future.
Read More →
February Fuel Update: Prices Inch Higher for Third Week in a Row
The final February fuel update reveals prices continuing to inch higher for the third week in a row.
Read More →
The 2026 Fuel Economy Guide: Updated Cost and Efficiency Benchmarks for Fleets
Fleet managers can use the DOE’s 2026 Fuel Economy Guide to benchmark MPG across powertrain types using side-by-side vehicle ratings and compare new model-year options.
Read More →
January Fuel Update: Prices Hit Highest Level Since Summer
The national average for fuel prices has officially risen to its highest point since the summer.
Read More →