119th Congress · introduced in the House · Jul 9, 2026
DEF Act
Official title from Congress.gov
Latest action (Jul 14, 2026): Forwarded by Subcommittee to Full Committee by Voice Vote.
View on Congress.govPolicy area: Environmental Protection
No official summary has been published for this bill.
Includes amendment, cloture, and procedural votes. Each is labeled with its exact question; only a passage question is a vote to pass the bill.
No recorded roll calls on this bill in coverage.
Forwarded by Subcommittee to Full Committee by Voice Vote.
Subcommittee Consideration and Mark-up Session Held
Referred to the House Committee on Energy and Commerce.
Referred to the Subcommittee on Environment.
Introduced in House
Introduced in House
Actions from Congress.gov, newest first.
Administrative law and regulatory procedures · Air quality · Environmental Protection Agency (EPA) · Environmental regulatory procedures · Motor carriers · Motor vehicles
LD-2 reports whose issue descriptions explicitly cite this bill (bill type and number validated against Congress.gov records). A citation does not establish the client's position or any contact with a member.
Loading lobbying reportsCoverage: reports for 2025 onward, posted Jan 1, 2025 through Oct 23, 2026.
16 citations.
OWNER-OPERATOR INDEPENDENT DRIVERS ASSOCIATION · lobbying firm or registrant: OWNER-OPERATOR INDEPENDENT DRIVERS ASSOCIATION
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 22, 2026 · issue area: Trucking/Shipping
$374,733
Spent on own lobbying
…ing Support H.R. 8870, BUILD America 250 Act Support Veterans access to careers in trucking Support S. 4429, Connected Vehicle Security Act of 2026 Feedback on H.R. 9618, Diesel Engine Flexibility (DEF) Act
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
CATERPILLAR INC · lobbying firm or registrant: CATERPILLAR INC.
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Clean Air and Water (quality)
$1,040,000
Spent on own lobbying
…ity Act of 2025 (entire bill). H.R. 7567 Farm, Food, and National Security Act of 2026 (Section 12422); H.R. 2140 Diesel Emissions Reduction Act (entire bill); H.R. 9618 Diesel Engine Flexibility Act (Section 3)
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
BRANDT HOLDINGS CO · lobbying firm or registrant: SHUMAKER ADVISORS, LLC
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Fuel/Gas/Oil
$15,000
Paid to lobbying firm
HR 9618-Diesel Engine Flexibility Act
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
CASE NEW HOLLAND INDUSTRIAL INC · lobbying firm or registrant: CASE NEW HOLLAND INDUSTRIAL INC.
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Transportation
$290,000
Spent on own lobbying
…ls; H.R. 3935, the FAA Reauthorization Act of 2024; Surface Transportation Reauthorization; S. 3135/H.R. 6250, the Cold Weather Diesel Reliability Act of 2025; H.R. 9618, DEF Act
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
EARTHJUSTICE ACTION · lobbying firm or registrant: EARTHJUSTICE ACTION
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Transportation
$142,000
Spent on own lobbying
…America 250 Act H.R. 3410/S.1759 - Supersonic Aviation Modernization Act H.R. 3194 - Lifting Overburdensome Commerce Obstructions and Motives (LOCOMOTIVE) Act H.R. 9618 - Diesel Engine Flexibility (DEF) Act H.R. 4790/S. 2520 - All Aboard Act of 2025 H.R. 2140 - Diesel Emissions Reduction Act of 2025 H.R 9317 - Buses Utilizing…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
NFIB (NATIONAL FEDERATION OF INDEPENDENT BUSINESS) · lobbying firm or registrant: NFIB (NATIONAL FEDERATION OF INDEPENDENT BUSINESS)
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Small Business
$1,910,000
Spent on own lobbying
…Eliminating Duplicative Environmental Regulations Act H.R. 8414, Know Your Labor Rights Act H.R. 7861, HSAs for All Act H.R. 7895, PBM Kickback Prohibition Act H.R. 9618, Diesel Engine Flexibility Act H.R. 9340, Ratepayer Protection Act H.R.1515, Guidance Out of the Darkness (GOOD) Act H.R. 10015, Great American Healthcare Act…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
AMERICAN LUNG ASSOCIATION · lobbying firm or registrant: AMERICAN LUNG ASSOCIATION
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Clean Air and Water (quality)
$70,000
Spent on own lobbying
…, Transportation, Housing and Urban Development and Related Agencies Appropriations Act, 2027; HR 9317, Buses Utilizing Safety and Environmental Standards Act; HR 9618, Diesel Engine Flexibility Act; S 4404, No Passes for Polluters Act; S 5045, Wildfire Emissions Prevention Act; HR 9019, POWER Act; S 5092, Restoring Affordabi…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
AMERICAN PUBLIC TRANSPORTATION ASSOCIATION · lobbying firm or registrant: AMERICAN PUBLIC TRANSPORTATION ASSOCIATION
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Transportation
$420,000
Spent on own lobbying
…S.5492, Safe Transit Act; S.5653, A bill to prescribe permitting reform, and for other purposes; H.R.6500, Continuing Appropriations and Extensions Act, 2027; H.R.9618, Diesel Engine Flexibility Act; H.R.9770, Continuing Appropriations Act, 2027; H.Con.Res.113, Establishing the congressional budget for the United States Gover…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
AMERICAN TRUCKING ASSOCIATIONS · lobbying firm or registrant: AMERICAN TRUCKING ASSOCIATIONS
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Environment/Superfund
$650,000
Spent on own lobbying
…. 25 - Polluters Pay Climate Fund Act; H.R. 8079 / S. 3007 - Diesel Truck Liberation Act; H.R. 2460 - Eliminating the RFS and Its Destructive Outcomes Act; and H.R. 9618 - Diesel Engine Flexibility Act. Environmental issues related to Hazardous Materials, Air Quality, Vehicle Emissions, Diesel Issues (retrofits), Motor Carriers…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
CUMMINS INC · lobbying firm or registrant: CUMMINS, INC.
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Transportation
$550,157
Spent on own lobbying
…fuel efficiency regulations- No Bill; REPAIR Act- H.R. 1566; Cold Weather Diesel Reliability Act of 2025- S. 3135 and H.R. 6250; Diesel Engine Flexibility Act- H.R. 9618; PLOW Storms Act- H.R. 8782; Diesel Truck Liberation Act of 2026- H.R. 8079, S.3007; Battery policy- No Bill; Connected Vehicle Security Act- S.4429
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
CUMMINS INC · lobbying firm or registrant: CUMMINS, INC.
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 20, 2026 · issue area: Clean Air and Water (quality)
$550,157
Spent on own lobbying
…bility Act of 2025- S. 3135 and HR. 6250; SPEED Act- H.R. 4776; Bipartisan American Affordability and Jobs Act of 2026- S. 5653; Diesel Engine Flexibility Act- H.R. 9618; PLOW Storms Act- H.R. 8782; Diesel Truck Liberation Act- H.R. 8079, S.3007; Farm Equipment Safety Act- H.R. 7849; Battery policy- No Bill
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
SIERRA CLUB · lobbying firm or registrant: SIERRA CLUB
2026 Q3 report (Jul 1, 2026 – Sep 30, 2026) · posted Oct 14, 2026 · issue area: Fuel/Gas/Oil
$220,000
Spent on own lobbying
…with respect to the ethanol waiver for Reid Vapor Pressure under that Act, and for other purposes (Oppose) H.R. 2140: Diesel Emissions Reduction Act (Support) H.R. 9618: Diesel Engine Flexibility (DEF) Act (Oppose)
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
BRANDT HOLDINGS CO · lobbying firm or registrant: SHUMAKER ADVISORS, LLC
2026 Q2 report (Apr 1, 2026 – Jun 30, 2026) · posted Jul 28, 2026 · issue area: Fuel/Gas/Oil
$15,000
Paid to lobbying firm
HR 9618-Diesel Engine Flexibility Act
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
CASE NEW HOLLAND INDUSTRIAL INC · lobbying firm or registrant: CASE NEW HOLLAND INDUSTRIAL INC.
2026 Q2 report (Apr 1, 2026 – Jun 30, 2026) · posted Jul 20, 2026 · issue area: Transportation
$280,000
Spent on own lobbying
…ls; H.R. 3935, the FAA Reauthorization Act of 2024; Surface Transportation Reauthorization; S. 3135/H.R. 6250, the Cold Weather Diesel Reliability Act of 2025; H.R. 9618, DEF Act
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
AMERICAN LUNG ASSOCIATION · lobbying firm or registrant: AMERICAN LUNG ASSOCIATION
2026 Q2 report (Apr 1, 2026 – Jun 30, 2026) · posted Jul 20, 2026 · issue area: Clean Air and Water (quality)
$120,000
Spent on own lobbying
…ts Act; HR 6409, Foreign Emissions and Nonattainment Clarification for Economic Stability Act; HR 9317, Buses Utilizing Safety and Environmental Standards Act; HR 9618, Diesel Engine Flexibility Act; HR 1346, To amend the Clean Air Act with respect to the ethanol waiver for Reid Vapor Pressure under that Act, and for other pu…
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing
SIERRA CLUB · lobbying firm or registrant: SIERRA CLUB
2026 Q2 report (Apr 1, 2026 – Jun 30, 2026) · posted Jul 14, 2026 · issue area: Fuel/Gas/Oil
$100,000
Spent on own lobbying
…with respect to the ethanol waiver for Reid Vapor Pressure under that Act, and for other purposes (Oppose) H.R. 2140: Diesel Emissions Reduction Act (Support) H.R. 9618: Diesel Engine Flexibility (DEF) Act (Oppose)
Congress inferred from the report year; bill number and the title cited with it match Congress.gov records, and the bill predates the report. The amount is lobbying spending for every issue on this report, not this bill alone, and none of it is paid to any member of Congress. View filing