All lobbying filings

CARDINAL INFRASTRUCTURE LLC

CARDINAL INFRASTRUCTURE LLC filed a Q1 report for HYDROGEN FUEL CELL BUS COUNCIL on April 20, 2026, reporting $10,000 in lobbying income.

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

All filings by CARDINAL INFRASTRUCTURE LLC · Everything HYDROGEN FUEL CELL BUS COUNCIL has reported

Filing · LD-2 quarterly report Q1 report

Reporting period

1st Quarter 2026

Jan 1 - Mar 31 · Posted Apr 20, 2026

Income

$10,000

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

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

Lobbying activity 2

Transportation

THUD 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.