List experience that relates to the qualifications as required on the job announcement. Your Registration Code is a unique code created for each vendor number and tenant number.You'll need your tenant number or vendor number. What would motivate you to attend classes 100 percent of the time? What would motivate you to complete all your homework assignments on time? Official Forms for Viewing and Downloading. Information about background check and drug screening is provided in the acceptance letter. You must complete the annual physical and required immunizations. We have various applications and forms available on our web site for your convenience. A cover letter of 300 words or less, explaining why you are the ideal candidate for the students at Contra Costa College.