The National Occupational Classification (NOC) is Canada’s official source for referencing occupations in Canada. Encasing over 30 000 jobs, the NOC compiles and communicates occupational-related material for any individual interested in learning about Canada’s labour market.
The NOC is revised on five year cycles, and coincides with the Census periods. It reflects the evolution of the Canadian labour market and based on extensive research conducted across the country.
The NOC classifies occupations using a four-digit code, called the "NOC code”. The code denotes the type (i.e., work performed) and level (e.g., education, experience, etc) of skills needed for the particular occupation. Moreover, the code represents specificity within an occupation, through which 520 occupational groups are identified.
Each occupational group is structured in a standardized format, and includes the particular information:
Reference http://www5.hrsdc.gc.ca/noc