This paper explains the multimode collection process used in the 2006 Canadian Census. Explained are the ways in which a central master control system, using a dynamic frame of dwellings and questionnaire tracking, resolves duplicate responses and ensures efficient control and

coordination of all operations, whether run locally or centrally. Initial evaluations will be given. Data collection via five response channels must be coordinated. Questionnaires were delivered by either dropoff - --based on field listing of dwellings---or by mail using a register-based frame of addresses. Respondents had a choice to respond by either internet or mail. Some data were collected by personal or CATI interviews. Also, respondents to the long questionnaire could either reply to the income questions or give Statistics Canada permission to link to their tax records to obtain these data.