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Commentary: Devil’s in the Details of California Emissions Dream

Deborah Lockridge

Trucks are going to have to get cleaner and cleaner — just as the modern automobile has gotten cleaner and cleaner. … Now it is the trucking industry's turn.”

This comment, part of a contributed piece that ran on Forbes.com, sent me straight up a tree.

The topic was California's recent announcement that it is planning to crack down further on emissions from diesel trucks as it struggles to meet federal air quality limits in some parts of the state.

I don't disagree with the overall message of the Forbes column, that trucking should “engage regulators” instead of just saying “no.” In fact, that's exactly what trucking has been doing at the federal level. Truck and engine makers and the American Trucking Associations and other groups worked with the Environmental Protection Agency and the National Highway Traffic Safety Administration on developing federal greenhouse gas/fuel efficiency regulations, Phase 2 of which is near final publication.

I don't need to tell most of you about how excruciating it was getting through the decade of federal nitrogen oxide (NOx) and particulate matter (PM) emissions changes in the aughts. Equipment got more expensive, fuel economy suffered, maintenance costs went up, and heavy aftertreatment equipment got added that we're still trying to figure out how best to maintain.

Yes, it's a worthy goal to improve the environment and public health by reducing emissions. But truck emissions have in fact come a long way. It's quite likely that the air in some parts of California is now actually cleaner coming out the exhaust side of a new diesel truck than it is going in.

But it was an expensive, painful process to get there, both for the makers of the engines and for the fleets that bought them. Caterpillar got out of the business altogether, and Navistar is still working to recover from its failed emissions strategy.

So you can't blame trucking for looking at proposals to further cut NOx with a good bit of trepidation.

The California Air Resources Board in May proposed a low-NOx engine standard to be developed for heavy trucks, which would go into effect starting in 2023 (NOx is a major component of the smog that plagues the LA basin.) It also plans to push the EPA for a nationwide low-NOx standard.

But truck and engine makers have said in the past that striving for low NOx in diesels is at odds with federal GHG goals for increasing fuel economy.

I spoke with Mike Tunnell, director of energy and environmental affairs for the American Trucking Associations, a couple weeks after the CARB announcement. He pointed out there's a lot going on here, as truck emissions are just one small piece of a wide-sweeping effort with intersecting plans from different agencies.

One of the concerns is the lack of detail, he said, which make it “difficult to gauge how the impacts are going forward.”

Trucking has had very little time to digest all this (again making it difficult for the industry to really “engage” CARB, as the Forbes article suggests), with comments due July 1 in advance of a September hearing on the plan.

Making it more difficult is that the federal Phase 2 GHG regs are still being finalized.

“I think the uncertainty over the GHG standards will have to be resolved,” Tunnell said. “If they're viewed as really stringent and trying to push out all the fuel economy/GHG reductions that you can get out of an engine, that doesn't leave you much room to go back and get NOx [reductions].”

California is the only state that's allowed to write its own emissions regulations. But if it makes these decisions in a vacuum and doesn't take into account how its goals intersect with federal GHG regs, I'm afraid we could see a repeat of the aughts.

Related: Mack Testing Hybrid Drayage Truck at SoCal Ports

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Air-Weigh Scale Can Improve Safety for Work Trucks

Air-Weigh has released the LoadMaxx Work Truck Scale, an onboard scale designed specifically for work trucks.

The onboard axle scale is designed to improve safety and make trucks more efficient. The LoadMaxx Work Truck Scale warns the driver when a vehicle's weight approaches its safety threshold, allowing operators to load trucks safely.

Overloading is a leading cause of crane and hoist accidents on work trucks, according to Air-Weight, saying that one vehicle overturns for every 10,000 hours of crane use and 80% of these incidents are related to excess weight.

Air-Weighs weighing technology reduces the threat of overloading without disrupting a fleet's efficiency and can eliminate overweight fines as well.

Air-Weigh is a provider of on-board weighing solutions, building scales for commercial and refuse vehicles.

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A trucker’s wisdom from 5 million miles and a half century on the road

Schneider driver Bob Wyatt has driven for 51 years and logged almost 5 million miles - all without a preventable crash. Does he have sage advice to pass along to other drivers?

Yes and no.

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