A lobbying registration is required when a paid individual communicates with federal public office holders in respect of certain subject matter, either on behalf of their employer or a client. This dataset contains all lobbying registrations filed to the Office of the Registrar of Lobbyists between the dates January 31, 1996 and June 30, 2008 under the Lobbyists Registration Act, and the Office of the Commissioner of Lobbying from July 2, 2008 onward under the Lobbying Act. The dataset provides a primary file as well as secondary files in CSV format allowing for one to many relationships for some data elements collected within a registration. Also available is a data dictionary file which provides definitions for all data elements contained within the dataset. Note that any content entered manually within a registration is in the language of choice of the user.