# 119-hr-9618: DEF Act

119-hr-9618, DEF Act, is a 119th Congress bill sponsored by Rep. Fedorchak, Julie [R-ND-At Large] (R-ND); status in_committee (as of 2026-08-22).

- Canonical: https://policyrisk.com/legislation/119-hr-9618
- As of: 2026-08-22
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 119-hr-9618
- Congress: 119
- Title: DEF Act
- Status: in_committee
- Introduced: 2026-07-09
- Sponsor: Rep. Fedorchak, Julie [R-ND-At Large] (R-ND)
- Cosponsors: 7
- Policy area: Environmental Protection
- Touches household money: no
- Last recorded action: 2026-08-22

## Summary

**Creates a 10-year regulatory safe-harbor for certain diesel exhaust fluid (DEF) quality monitoring and inducement strategies.** It would let actions described in specific guidance avoid being treated as prohibited acts and limits new, stricter emission rules for on-road and nonroad diesel engines during that period. - Vehicle and engine manufacturers gain clearer certainty. The bill would allow inducement strategies and DEF-quality monitoring that match covered guidance without triggering prohibited-act claims and would bar standards stricter than the 2007 or 2010 on-road standards or Tier 4 nonroad standards for 10 years. - Owners, fleet operators, and repair shops see more predictable maintenance and updates. The bill would permit software updates, repair strategies, diagnostics, and monitoring consistent with guidance and existing certification and useful-life rules. - EPA rulemaking and future standards would face new limits and timing rules. Any post-10-year standard must apply for at least 3 model years and not take effect earlier than the model year starting 5 years after promulgation, and EPA must weigh durability, resale, costs, and national consistency when setting new requirements.

## Cosponsors (7)

- Rep. Davis, Donald G. [D-NC-1] (D-NC), 2026-07-09T00:00:00.000Z
- Rep. Finstad, Brad [R-MN-1] (R-MN), 2026-07-09T00:00:00.000Z
- Rep. Bergman, Jack [R-MI-1] (R-MI), 2026-07-09T00:00:00.000Z
- Rep. Fischbach, Michelle [R-MN-7] (R-MN), 2026-07-09T00:00:00.000Z
- Rep. Bost, Mike [R-IL-12] (R-IL), 2026-07-14T00:00:00.000Z
- Rep. Griffith, H. Morgan [R-VA-9] (R-VA), 2026-07-14T00:00:00.000Z
- Rep. Rulli, Michael A. [R-OH-6] (R-OH), 2026-07-14T00:00:00.000Z

## Provisions PRIA read

- 10-year pause for on-road diesel rules: benefit, high. If enacted, the bill would create a 10-year safe harbor for certain inducement strategies and DEF quality monitoring for new and in-use on-road diesel vehicles and engines. The bill would bar the EPA from issuing any on-road standard stricter than the defined 2007 or 2010 baselines during that 10-y…
- 10-year pause for nonroad diesel rules: benefit, medium. If enacted, the bill would create a 10-year safe harbor for certain inducement, repair-override, and DEF monitoring practices for nonroad equipment and engines that meet Tier 4 baselines. The bill would bar EPA from issuing any nonroad standard stricter than Tier 4 as in effect on January 1, 2025,…

## Related bills

- 119-hr-4669: FEMA Act of 2025
- 119-hr-1301: Death Tax Repeal Act
- 119-hr-979: AM Radio for Every Vehicle Act of 2025
- 119-hr-516: To amend the Internal Revenue Code of 1986 to modify the railroad track maintenance credit.
- 119-hr-1773: Federal Firearms Licensee Protection Act of 2025
- 119-hr-5267: American Franchise Act

## Sources
- [119-hr-9618 on Congress.gov](https://www.congress.gov/bill/119th-congress/house-bill/9618)

## Related
- [119-hr-4669: FEMA Act of 2025](https://policyrisk.com/legislation/119-hr-4669)
- [119-hr-1301: Death Tax Repeal Act](https://policyrisk.com/legislation/119-hr-1301)
- [119-hr-979: AM Radio for Every Vehicle Act of 2025](https://policyrisk.com/legislation/119-hr-979)
- [119-hr-516: To amend the Internal Revenue Code of 1986 to modify the railroad track mainten…](https://policyrisk.com/legislation/119-hr-516)
- [119-hr-1773: Federal Firearms Licensee Protection Act of 2025](https://policyrisk.com/legislation/119-hr-1773)
- [119-hr-5267: American Franchise Act](https://policyrisk.com/legislation/119-hr-5267)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/119-hr-9618 (as of 2026-08-22).