The Lobbying Disclosure Act of 1995 established criteria for determining whether an organization or firm should register their employees as lobbyists. Lobbyists register with the Secretary of the Senate Office of Public Records, which makes these registrations available for public inspection.
Filing Deadlines are August 14* (for January 1 - June 30 mid-year reports); February 14* (for July 1 - December 31 year-end reports).
*Or the next business day if the date falls on a holiday or a weekend.