H.R. 9618 119th Congress House

DEF Act

Official title: To amend the Clean Air Act to preserve regulatory stability for motor vehicles, motor vehicle engines, nonroad vehicles, and nonroad engines, and for other purposes.

Introduced: July 9, 2026 Introduced by: Julie Fedorchak Republican · North Dakota See on congress.gov

Environmental Protection Administrative law and regulatory proceduresAir qualityEnvironmental Protection Agency (EPA)Environmental regulatory procedures

More subjectsShow fewer subjects

Motor carriersMotor vehicles

Everywhere this bill has been 5 steps

Introduced

In committee

Reported out

Passed House

Passed Senate

To President

Became law

Jul 14, 2026

Forwarded by Subcommittee to Full Committee by Voice Vote.

Jul 14, 2026

Subcommittee Consideration and Mark-up Session Held

Jul 9, 2026

Introduced in House

Jul 9, 2026

Referred to the Subcommittee on Environment.

Jul 9, 2026

Referred to the House Committee on Energy and Commerce.

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What's happening now July 14, 2026

Forwarded by Subcommittee to Full Committee by Voice Vote.

Hearings & markups 1

Subcommittee Markup of Seven Pieces of Legislation
Meeting Jul 14, 2026 · 2:00 PM EDT · Environment Subcommittee

Bill text 1 version

Introduced in House Formatted Text PDF Formatted XML

Source documents hosted by congress.gov.

Committees of jurisdiction 2

Energy and Commerce Committee
House of Representatives
Environment Subcommittee
House of Representatives · subcommittee of Energy and Commerce Committee

Lobbying activity 15

Registered lobbyists who named this bill in their disclosure filings. Source: federal Lobbying Disclosure Act filings.

OWNER-OPERATOR INDEPENDENT DRIVERS ASSOCIATION
for OWNER-OPERATOR INDEPENDENT DRIVERS ASSOCIATION · Missouri · 3rd Quarter 2026 (July 1 - Sep 30)
CATERPILLAR INC.
for CATERPILLAR INC · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)
CASE NEW HOLLAND INDUSTRIAL INC.
for CASE NEW HOLLAND INDUSTRIAL INC · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)
EARTHJUSTICE ACTION
for EARTHJUSTICE ACTION · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)
NFIB (NATIONAL FEDERATION OF INDEPENDENT BUSINESS)
for NFIB (NATIONAL FEDERATION OF INDEPENDENT BUSINESS) · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)
AMERICAN LUNG ASSOCIATION
for AMERICAN LUNG ASSOCIATION · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)

Bodies those filers lobbied

HOUSE OF REPRESENTATIVES
15 filings
SENATE
15 filings
Environmental Protection Agency (EPA)
9 filings
Transportation, Dept of (DOT)
7 filings
White House Office
7 filings
U.S. Trade Representative (USTR)
6 filings
Commerce, Dept of (DOC)
5 filings
Natl Highway Traffic Safety Administration (NHTSA)
5 filings

A filing lists the bills it worked on and the parts of government it contacted in separate sections, so these are the bodies those filers named anywhere in the filing, not a per-bill breakdown.

See all 15 filings →

Cosponsors 7