You will need to enter all employment since you received your first license. If this means entering 40 years worth of jobs, so be it. The VetPro system will not let you submit unless all time is accounted for. Now, the credentialers may only use the last 10 years to check you out, but the system will require all of it. Also, make sure you have accurate addresses for those folks that can verify your information in the last 10 years. You will not want to put in things like "The Work Number" . instead, find a supervisor that will agree to complete the form and enter their information. This will ensure forms are returned in a timely manner and assist you in getting the highest pay when you go to boards. Last, when you enter personal reference information, make sure they are going to talk nice about you. Sounds ridiculous but you would be amazed! Good luck!