Mike Berdo has strong words to describe his ongoing experiences using machinery requiring DEF (Diesel Exhaust Fluid) on his southeast Iowa farm.
“It has been an absolute nightmare, at least for us. Mechanics make trip after trip to do little stuff that’s very expensive to fix,” said Berdo, who produces grain and beef cattle near Washington. “We had planting delays last spring … little stuff that came from it and just seemed like [an issue to deal with] day after day.”
The ongoing mechanical issues and costs are why Berdo said he is “all for” EPA rescinding the 2009 Greenhouse Gas Endangerment Finding. The Finding has enabled the agency to regulate greenhouse gas emissions under Section 202 of the Clean Air Act and, in recent years, and launch requirements such as the use of DEF systems in diesel-powered engines.
EPA Draws A Line In The Sand
On Tuesday, EPA Administrator Lee Zeldin released a proposal to rescind the 2009 Finding.
If finalized, the proposal would remove all greenhouse gas standards for light-, medium- and heavy-duty vehicles and heavy-duty engines, EPA said in a follow-up press release.
The move would start with EPA’s first greenhouse gas standard set in 2010 for light-duty vehicles and those set in 2011 for medium-duty vehicles and heavy-duty vehicles and engines.
EPA said the proposal is expected to “save Americans $54 billion in costs annually through the repeal of all greenhouse gas standards, including the Biden EPA’s electric vehicle mandate, under conservative economic forecasts.”
Zeldin made the announcement to rescind the Finding in Indiana, alongside Energy Secretary Chris Wright, and called it the largest deregulatory action in U.S. history.
What The Decision Could Mean To Farmers
Specific to U.S. farmers, the proposal could potentially result in DEF systems no longer being included on new tractors and other heavy equipment using diesel-powered engines, said Chip Flory, host of AgriTalk, during a Farmer Forum discussion on Wednesday.
South Dakota farmer Ryan Wagner told Flory he has a wait-and-see perspective on how or whether the EPA proposal goes into effect. He anticipates that reversing the Finding will take considerable time and effort for EPA to implement.
“It took a long time with the interim engines and things to get into full DEF in the first place,” Wagner said. “I don’t know how long it would take to unwind all that and how quickly manufacturing will just take those systems right off, but it’ll be interesting to see what happens.”
To Wagner’s point, here’s a brief look back at some timing showing when DEF rolled out in agriculture and nonroad equipment and became mandatory. The regulations were phased in over several years based on the type of equipment and engine size:
2008: DEF became required for all new diesel engines with engine sizes over 750 horsepower.
2011: the regulations expanded to include equipment with engine sizes between 175-750 horsepower.
By 2015, all new nonroad diesel engines were required to be Tier 4 compliant and utilize DEF, regardless of equipment type or engine size.
As Wagner considers DEF, he noted its use in diesel engines has provided him with one benefit: “On the plus side, I do like that they don’t make the walls of my shop black. That’s been nice,” he said. “You can run them inside for a short time and not not feel like you’re breathing in a bunch of soot and making everything black.”
Expect Legal Challenges To EPA Decision
A number of environmental groups have already blasted the move by EPA, saying it spells the end of the road for U.S. action against climate change, according to an online article by Reuters.
Legal challenges from various environmental groups, states and lawyers are likely ahead.
That fact wasn’t lost on Flory and the Farmer Forum participants during the AgriTalk discussion on Wednesday.
“If this proposal is finalized, it’s going to start a lot of conversations … and the dominoes are going to start to fall, something that we need to keep track of, no doubt,” Flory said. You can hear the complete Farmer Forum discussion on AgriTalk here:
EPA will initiate a public comment period to solicit input. Further information on the public comment process and instructions for participation will be published in the Federal Register and on the EPA website.
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