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. This revised edition eliminates the differences between the two former systems.