Tighter Emissions Standards Across the Board

The Environmental Protection Agency has approved new emission rules for heavy-duty trucks that will apply to incoming model years starting in 2027. The goal is to cut nitrogen oxides and greenhouse gas emissions significantly over the next decade. Instead of prescribing one technology, the rules allow fleets to choose cleaner solutions that work for them — whether that’s battery‑electric, hydrogen fuel cell, or upgraded diesel engines with stronger emission control systems.

Several states are going above and beyond these requirements. California, for example, is pushing ahead with its Advanced Clean Trucks and Advanced Clean Fleets programs, which set a timeline for phasing in more zero-emission trucks and aim for a mostly zero-emission medium‑ and heavy-duty fleet by 2035. Other states are following similar paths, so interstate drivers may encounter different standards depending on the routes they run.

What Fleets Are Doing to Keep Up

The changes aren’t happening in theory; they’re visible in company yards. More carriers are adding electric or hydrogen-powered rigs where the infrastructure supports them. For fleets that aren’t ready to switch entirely, retrofits like diesel particulate filters and selective catalytic reduction systems are helping older trucks meet tighter emission limits.

Fuel efficiency upgrades are also in the spotlight. Better aerodynamic designs, tires with lower rolling resistance, and lighter truck components are all being deployed to cut both fuel use and emissions. Programs like the EPA’s SmartWay recognize fleets making measurable progress in this space, which in turn can help carriers win contracts with shippers who value sustainable transport.

What Drivers Might Notice

For most drivers, the steering wheel, gears, and daily grind won’t change overnight. But you will likely start noticing more electric rigs in the yard, new refueling or charging setups, and trucks with systems designed to run cleaner. These changes can make for a quieter cab, potentially better fuel mileage, and in some cases less frequent maintenance on certain components, though some of the new systems require their own specialized care.

Why This Matters to the Job

Cleaner trucks mean meeting environmental targets, but they also frequently bring cost advantages over time. Lower fuel bills, the possibility of fewer mechanical issues, and compliance with tightening rules all play into a fleet’s ability to stay competitive. And for drivers, adapting to these changes keeps you aligned with a rapidly evolving industry.

Looking Ahead

Sustainability in trucking is no longer just a future goal; it’s part of everyday operations. As the push for lower emissions continues, drivers and fleets that stay informed and flexible will be best placed to succeed, all while helping reduce the industry’s environmental impact. This is the road the industry is on, and everyone who moves freight has a role in where it leads next.

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Mike Roeth, NACFE’s Executive Director, highlights the importance of this phase in the evolution of trucking technology, saying, “The Messy Middle is a time when fleets can choose from a variety of powertrain solutions and other efficiency-enhancing technologies. For this Run, we are featuring tractors powered by diesel, natural gas, batteries, and hydrogen fuel cells. These four powertrain solutions represent currently available options for fleets today.”

The Fleets and Technologies Driving the Run

A total of 13 fleets will be participating in the event, utilizing a mix of advanced powertrains. Here’s an overview of the trucks involved in this groundbreaking demonstration:

• Albert Transport (Laredo, TX): Operating a 2022 Freightliner Cascadia sleeper tractor powered by a Detroit DD15 diesel engine.

• Frito-Lay (Topeka, KS): Using a Volvo VNL sleeper tractor equipped with the Optimus Technologies system running on B99 biodiesel.

• TBA: Deploying a heavy-duty tractor fueled by renewable diesel.

• Mesilla Valley Transportation (Las Cruces, NM): Running an International LT sleeper tractor with a Cummins X15 2027 NOx diesel engine.

• Kleysen Group Ltd. (Edmonton, AB): Operating a Kenworth T680 sleeper tractor featuring a Cummins X15N engine using natural gas.

• UPS (Salt Lake City, UT): Using a Kenworth T680 day cab tractor with a Cummins X15N natural gas engine.

• Wegmans (Rochester, NY): Running a Peterbilt 360 day cab tractor powered by a Cummins X15N natural gas engine.

• 4Gen Logistics (Rialto, CA): Featuring a Volvo VNR day cab electric tractor.

• JoyRide Logistics (Phoenix, AZ): Leveraging a battery-electric Windrose day cab tractor.

• Nevoya (Colton, CA): Operating a battery-electric Freightliner eCascadia day cab tractor.

• Saia (Stockton, CA): Showcasing a battery-electric Tesla Semi day cab tractor.

• Pilot Travel Centers (Bloomington, CA): Utilizing a Hyundai XCIENT hydrogen fuel cell day cab tractor.

• Penske Logistics (Katy, TX): Also operating a Hyundai XCIENT hydrogen fuel cell day cab tractor.

A Collaborative Effort Across the Industry

Taki Darakos, Vice President of Vehicle Maintenance and Fleet Services at PITT OHIO, expresses his enthusiasm for this wide-reaching effort, stating, “PITT OHIO, as well as other fleets I’ve spoken with, are thrilled to have such a wide range of fleets and solutions in this Run. We believe this truly represents the state of long-haul trucking today and by capturing data from these 13 vehicles that we will help the industry see the role these various powertrains play in both return-to-base and over-the-road long-haul trucking.”

Key Details About the Program

The three-week event is scheduled to begin on September 8, with Geotab acting as the official telematics and data partner. Fleet profiles will be featured on the Run on Less website throughout August, while the event will stream live data and insights during September.

The Messy Middle Bootcamp also continues to explore the technologies driving the Messy Middle. On April 8, at 1 p.m. ET, the focus shifted to battery electric vehicles (BEVs), complementing sessions on diesel and natural gas that have already concluded. Discussions on hydrogen fuel cells are set to follow.

Cummins and Shell Take Center Stage

Cummins and Shell proudly sponsor the event as title sponsors, with significant contributions from other event sponsors and supporting sponsors. Roeth expressed his gratitude, noting, “We want to thank our title sponsors, event sponsors, and supporting sponsors for helping fund this Run. We could not do this work without their assistance. We are still seeking additional support, and anyone interested in supporting the Run should contact me at 260-750-0106.”

The diversity of participating fleets and technologies underscores the complex transition underway in the trucking industry. Stay updated on the Run on Less – Messy Middle program and learn how these innovations pave the way towards a more sustainable and efficient transportation future.

Source: The Trucker
Image Source: RunOnLess

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From Early Haulers to Modern Workhorses

The first motorized trucks were simple, functional vehicles designed to replace horse-drawn freight transport. By the 1930s and 1940s, manufacturers began refining truck designs, introducing cab-over-engine (COE) models to maximize cargo space while adhering to strict length regulations. These trucks, pioneered by companies like Freightliner, were a game-changer for urban and regional hauling.

However, as the industry grew, so did the need for long-haul efficiency and driver comfort. The conventional cab design, which places the engine in front of the driver, gained traction by the 1970s, offering easier maintenance and a smoother ride. This shift set the stage for the trucks we see dominating highways today.

The Rise of Customization and Heavy-Duty Specialization

As the freight industry expanded, so did the need for specialized heavy-duty trucks that could handle extreme loads, rough terrains, and demanding job sites. This is where Western Star found its niche. Known for its heavy-duty construction and customizable features, Western Star trucks have been a top choice for industries like logging, mining, and specialized freight hauling.

Unlike mass-produced fleet trucks, Western Star allows operators to spec their trucks down to the finest details, from frame strength to cab interiors. This level of customization ensures that every truck is built to endure the unique challenges of its intended use, whether it’s navigating remote oil fields or hauling oversized loads.

Technology and Sustainability: The Next Chapter

The push for fuel efficiency and sustainability has driven manufacturers to explore new technologies. Today’s semi-trucks feature aerodynamic designs, advanced telematics, and alternative fuel options that reduce emissions and operating costs. Electric and hydrogen-powered trucks, once a futuristic concept, are now entering the market, led by brands like Volvo, Daimler, and Tesla.

Even Western Star, traditionally known for its rugged diesel-powered workhorses, has adapted by integrating more fuel-efficient engines and lightweight materials to improve performance without sacrificing durability. As emission regulations tighten and fleets look for cost-effective solutions, truck manufacturers will continue to innovate, balancing power with environmental responsibility.

Looking Ahead: What’s Next for Semi-Trucks?

The trucking industry is on the cusp of major transformations, from autonomous driving technology to next-gen powertrains. While self-driving trucks won’t replace drivers anytime soon, advancements in collision avoidance, lane-keeping assistance, and real-time monitoring are making trucks safer and more efficient.

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According to the EPA, these honorees exemplify the best practices in sustainable transportation, achieving impressive results in reducing emissions and optimizing energy use while transporting goods across vast distances. These industry leaders stand out for their commitment to minimizing fuel consumption, decreasing greenhouse gas emissions, and enhancing air quality within the communities they operate.

The esteemed recipients of the 2024 SmartWay Freight Partner Excellence Award include:

• Arrow Transportation

• Bridgestone Americas Tire Operations

• Canadian Reefers Ltd.

• Cargo Transporters

• Covenant Transport

• Crete Carrier Corporation

• CRST The Transportation Solution Inc

• D&D Transportation Services Inc

• Danny Herman Trucking Inc

• Discount Tire

• Divine Enterprises, Inc.

• Dollar Tree Stores, Inc

• Edgewell Personal Care

• Elevate Textiles, Inc.

• Forza Transportation Services, Inc

• Gap Inc. Canada

• Gap Inc. USA

• Georgia-Pacific Consumer Products LP

• GP Transportation Co

• Hirschbach Motor Lines

• Hogan Transports, Inc.

• Keane Thummel Trucking Inc.

• Kellanova

• Kimberly-Clark Corporation

• Knight Transportation, Inc.

• Kohl’s

• Lowe’s Companies, Inc.

• May Trucking Company

• McDonald’s USA, LLC

• Meijer

• Mesilla Valley Transportation

• Mike Frost Trucking, Inc.

• Nussbaum Transportation Services, Inc.

• Ocean Spray Cranberries, Inc

• Paper Transport, LLC

• Prime, Inc.

• Royal Trucking Company

• Ryder Dedicated Transportation Solutions (DTS)

• Saia Motor Freight Line, LLC

• Schneider

• Swift Transportation Co. of Arizona, LLC

• The Home Depot U.S.A., Inc

• The TJX Companies, Inc.

• Tractor Supply Company

• Trans-West Logistics Inc / Logistiques Trans-West Inc.

• Werner Enterprises

• Western Express, Inc.

Michael S. Regan, EPA Administrator, remarked, “As we mark our 20th anniversary this year, we celebrate decades of our partners advancing freight efficiency, and delivering goods with less fuel and lower emissions, thus strengthening this essential economic sector while supporting air quality goals.” He continued, “SmartWay is proud to recognize 47 top performing truck carrier and shipper Partners — with the 2024 SmartWay Excellence Award for outstanding environmental performance and business leadership in goods movement.”

This recognition underscores the pivotal role these partners play in promoting environmentally responsible practices in the transportation sector.

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