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The publication of the National Occupational Classification (NOC) 2021 is the thirtieth anniversary of the standard occupational classification system and it introduces a major structural change. The NOC 2021 Version 1.0 overhauls the "Skill Level" structure by introducing a new categorization representing the degree of Training, Education, Experience and Responsibilities (TEER) required for an occupation. The NOC 2021 Version 1.0 also introduces a new 5-digit hierarchical structure, compared to a 4-digit hierarchical structure in the previous versions of the classification. The NOC has been developed and maintained as part of a collaborative partnership between Employment and Social Development Canada and Statistics Canada.

The NOC is the product of a partnership between Statistics Canada and Employment and Social Development Canada. The National Occupational Classification (NOC) is the nationally accepted taxonomy and organizational framework of occupations in the Canadian labour market. The basic principle of classification of the NOC is that of kind of work performed. The NOC 2011 updates both the National Occupational Classification 2006 of Employment and Social Development Canada and Statistics Canada's National Occupational Classification for Statistics (NOC-S) 2006.

The National Occupational Classification (NOC) 2016 updates the National Occupational Classification 2011. The NOC has been developed and maintained as part of a collaborative partnership between Employment and Social Development Canada and Statistics Canada. This update of the classification reflects ongoing occupational research and consultation to incorporate information on new occupations.

Statistics Canada's occupational classification for 2001 is called the National Occupational Classification for Statistics 2001 (NOC-S 2001) to distinguish it from the National Occupational Classification (NOC) put out by Human Resources Development Canada. (The two classifications differ only in the aggregation structure of the classification). Both provide a complete listing of all the categories under which Canadian jobs are classified and their descriptions.

The National Occupational Classification (NOC) 2016 Version 1.1 updates the National Occupational Classification 2016 Version 1.0. The NOC has been developed and maintained as part of a collaborative partnership between Employment and Social Development Canada and Statistics Canada. This update of the classification reflects ongoing occupational research and consultation to incorporate information on new occupations.

Statistics Canada's occupational classification for 2006 is called the National Occupational Classification for Statistics 2006 (NOC-S 2006) to distinguish it from the National Occupational Classification (NOC) put out by the Department of Human Resources and Social Development Canada. (The two classifications differ only in the aggregation structure of the classification). Both provide a complete listing of all the categories under which Canadian jobs are classified and their descriptions.

The National Occupational Classification (NOC) 2016 Version 1.2 updates the National Occupational Classification 2016 Version 1.1. The NOC has been developed and maintained as part of a collaborative partnership between Employment and Social Development Canada and Statistics Canada. This update of the classification was completed in response to the legalization of cannabis for non-medical use. This has resulted in twenty five new job titles being created in NOC 2016 V1.2 to reflect new occupations in the cannabis industries.

The National Occupational Classification (NOC) 2016 Version 1.3 is an update of the National Occupational Classification 2016 Version 1.2. This update replaces the previous version and is part of our evergreening process, to update the NOC classification on a yearly basis, to remain current with the labour market. The NOC has been developed and is maintained as part of a collaborative partnership between Employment and Social Development Canada and Statistics Canada.

The Standard Geographical Classification (SGC) is Statistics Canada's official classification of geographic areas in Canada. The SGC provides unique numeric codes for three types of geographic areas: provinces and territories, census divisions (counties, regional municipalities), and census subdivisions (municipalities). The three geographic areas are hierarchically related; a seven-digit code is used to show this relationship. In addition the two other areas, Metropolitan Areas and Economic Regions are recognized as standard geographic areas in the SGC.

The Standard Geographical Classification (SGC) is Statistics Canada's official classification of geographic areas in Canada. The SGC provides unique numeric codes for three types of geographic areas: provinces and territories, census divisions (counties, regional municipalities), and census subdivisions (municipalities). The three geographic areas are hierarchically related; a seven-digit code is used to show this relationship. In addition the two other areas, Metropolitan Areas and Economic Regions are recognized as standard geographic areas in the SGC.