Download or read book Guide written by Canada. Occupational and Career Information Branch and published by . This book was released on 1987 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CCDO is a systematic and comprehensive arrangement of occupational descriptions reflecting the work performed by the Canadian population and represents a summary of the significant activities of a number of similar jobs that may be found in different establishments. The classification structure consists of major, minor, unit group and individual occupations. There are over 7,700 individual and non-groupable occupations described as well.