Nicholas Begich (R-AK)
Cold Weather Diesel Reliability Act of 2025
A Republican bill with 1 Republican cosponsor · See the cosponsor
Last activity — Referred to the House Committee on Energy and Commerce.
In committee
Introduced and handed to a committee in the chamber it started in.
The committee holds it, and most bills are never heard from again. A hearing or a committee vote would be news; silence is the usual outcome, and it kills the bill without anyone voting against it.
Its path through Congress
- Introduced
- In Committee
What this bill would do
The Cold Weather Diesel Reliability Act of 2025 directs the EPA Administrator to allow manufacturers of certain diesel vehicles to suspend engine derate or shutdown functions during extreme cold. This applies when temperatures are at or below zero degrees Centigrade to prevent risks like occupational danger or loss of essential transportation. Additionally, the bill seeks to provide year-round exemptions from diesel exhaust fluid system requirements for vehicles operated in specific northern latitudes or specific freezing conditions. These changes aim to address unreliability and logistical issues regarding diesel exhaust fluid in cold climates. The Act specifies that these exceptions do not waive other emissions standards under the Clean Air Act.
Yes· 3 of 7
- Scored +5
Would people in rural areas be better off under this?
The bill addresses logistical challenges regarding diesel exhaust fluid in rural, freezing climates.
- Scored +5
Does this invest in rural communities?
The bill improves the reliability of essential transportation and equipment functionality for rural regions with prolonged freezing conditions.
- Scored +4
Would farmers be better off under this?
The bill increases the reliability of diesel-powered equipment used in agricultural and remote operations.
The opposite
- Scored -3
Does this better protect air, water and wildlife?
The bill allows for the suspension of certain emissions control functions in extreme cold.
Who it would affect, and how
Potential Positive Impacts for People
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Prevention of Life-Threatening Risks: The bill aims to prevent automatic engine shutdowns and power reductions that occur due to emissions control malfunctions in extreme cold, which are described as life-threatening risks. (Section 2)
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Maintaining Essential Transportation and Safety: By allowing the suspension of engine derate or shutdown functions, the bill helps prevent occupational danger, equipment failure, or the loss of essential transportation functionality in remote areas with limited support. (Section 4(a))
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Increased Reliability in Cold Climates: The bill addresses the fact that diesel exhaust fluid storage, supply, and system functionality are frequently unreliable and impractical in rural regions with prolonged freezing conditions. (Section 2)
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Operational Relief for Specific Regions: It provides a year-round exemption from diesel exhaust fluid system requirements for vehicles primarily operated north of 59 degrees north latitude or those encountering temperatures below the freezing point of the fluid. (Section 4(b))
Potential Negative Impacts for People
- No negative impacts are explicitly stated in the provided text.
Groups and Interests Ranking
Every group the model scored this bill for, from -10 to +10. Tap or hover a score for the reason it gave.
- Demographic And Interest Groups
- Would people in rural areas be better off under this? — The bill addresses logistical challenges regarding diesel exhaust fluid in rural, freezing climates. Would farmers be better off under this? — The bill increases the reliability of diesel-powered equipment used in agricultural and remote operations. Would households on low incomes be better off under this? — The bill helps ensure the reliability of essential transportation in remote areas.
- Economy And Finance
- Does this make it easier to run a small business? — The bill addresses logistical and reliability issues for businesses operating diesel vehicles in remote, cold regions. Does this strengthen the rights of workers to organise? — The bill reduces occupational danger for workers operating diesel equipment in extreme cold.
- Environment Energy And Infrastructure
- Does this invest in rural communities? — The bill improves the reliability of essential transportation and equipment functionality for rural regions with prolonged freezing conditions. Does this better protect air, water and wildlife? — The bill allows for the suspension of certain emissions control functions in extreme cold.
- Social Issues And Justice
- Is this likely to lift people out of poverty? — The bill helps maintain essential transportation functionality in remote areas where mobility is critical.
- 4/21/2026
- 1 Cosponsor added.
- 11/21/2025
- Referred to the House Committee on Energy and Commerce.
- Introduced in House
One bill Congress.gov lists as related to this one — companions in the other chamber, earlier versions, and bills this one absorbed or was folded into.
Celeste MaloyRepublican · Utah