Citizen
Where do you stand in the organization? Do you have the responsibility to ensure that all are doing what the company's documentation says (policing)? Do you have the authority to do something about it (disciplining)?
People do not do things (or not do things) just because they feel like it, or not feel like it. I am getting the feeling that people are not following the requirements because perhaps the requirements are not necessarily helpful? example: If that many people are not filling out some portion of a form, are you sure that you need the information? If one person is filling out the entire form, do you need to have them sign each and every line of the form?
I think that it is time for someone to go through your procedures and work instructions and figure out exactly what people NEED to do, instead of what you want them to do. These are the folks who are "doing" every day. Let them have a say in what and how it is to be done. You cannot sit in your office and write work instructions for people to follow if you do not have the experience of the job to back you up.

Empower your employees, in the end, it is those folks who are not completing the forms who will make or break your efforts to be certified, not the person controlling the documents. Besides that, it is much more pleasant to work as a team than it is for someone to play ISO Cop and hand out beatings.