One of the main reasons for failure is the copying of the content. Some people take parts of the examples from the internet and put them in their report as if they were their own work. Engineers Australia verifies each report for plagiarism. If they detect copied content, the report is rejected immediately. https://www.tumblr.com/cdrreportwriting/803368919277731840/why-90-fail-cdr-writing-for-engineers-australia