In February 2004, the Committee of Senior Officials (COSO) mandated the Public Service Human Resources Management Agency of Canada (PSHRMAC), in partnership with the Public Service Commission of Canada (PSC), with leading a review of the Profile of Leadership Competencies. The review was undertaken to update, reduce, and simplify the leadership competencies and to define them at all levels of the leadership continuum (from the Deputy Minister to the Supervisor level). Revisions were based on best practices research and extensive national consultations at all levels of the leadership continuum.