This article describes the Canadian education system and provincial/territorial, national, and international large-scale assessment (LSA) programmes that currently operate within this large multicultural country. We highlight the policy implications of LSA programmes within Canada's 10 provinces and three northern territories, and how the country balances international pressures with the demand for independence in the educational practices of its distinct provinces and territories. The discussion outlines how the systematic use of performance information is institutionalised through two kinds of accountability, ethical-professional and economic-bureaucratic accountability. (Contains 2 tables.)