This document outlines the definitions and the typology now used by Statistics Canada's Centre for Education Statistics to identify, classify and delineate the universities, colleges and other providers of postsecondary and adult education in Canada for which basic enrollments, graduates, professors and finance statistics are produced. These new rigorous definitions were needed to capture the growing complexity of postsecondary education in Canada. They differentiate the various types of postsecondary institutions, address the blurring distinction between colleges and universities and handle the various forms of possible relationships between institutions. The document brings closure to the extensive consultation that took place between January 2003 and the spring of 2007 as it summarizes the changes made following the 2004 paper entitled "A New Understanding of Post-secondary Education in Canada: A Discussion Paper". Such an extensive consultation was deemed necessary to ensure that the typology is useful to the whole sector and that it allows comparisons between provinces and territories despite the significant differences of their respective postsecondary education systems. This report is divided in two main sections. The first presents the definitions and typologies adopted by the CES. The second summarizes the feedback received following the 2004 discussion paper, the experience gained with the "Register", and the changes that have been made. The conclusions were influenced by other developments outlined in appendices dealing with recent changes to the classification used by the Carnegie Foundation for the Advancement of Teaching and the North American Industry Classification System (NAICS). Another appendix provides information on the sources and approach CES uses to maintain its "Register". Four appendices are included: (1) Sources used by the "Register of Postsecondary and Adult Education Providers"; (2) Carnegie Foundation for the Advancement of Teaching; (3) North American Industrial Classification System; and (4) Related US websites. (Contains 6 tables and 11 endnotes.)