All lobbying filings

CARDINAL INFRASTRUCTURE LLC

Lobbying for HYDROGEN FUEL CELL BUS COUNCIL · Coalition working to advance hydrogen fuel as a source of energy for public transportation

Filing 4th Quarter - Report

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Jan 20, 2026

Income

$10,000.00

What the client paid this registrant for the period.

Client based in

District of Columbia

Official filing document

Lobbyists on this filing 1

AUKE MAHAR-PIERSMA

Previously held: Staff Director of Railroads, Pipelines and Hazardous Materials Subcommittee 2014-2020 and Deputy Staff Director of Highways and Transit Subcommittee 2020-2023.

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Government bodies contacted 4

Energy, Dept of
HOUSE OF REPRESENTATIVES
SENATE
Transportation, Dept of (DOT)

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when.

Lobbying activity 2

Transportation

Transportation appropriations, IIJA Reauthorization

Energy/Nuclear

Hydrogen Hubs program, and IRA implementation

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.