Applicants must pass a “closed book”, qualifying examination to demonstrate knowledge of general meteorology. A test of 100 multiple choice and true/false questions will be administered at a test center or remotely by SMT/Promteric through an online proctored environment. Applicants must have a grade of 75 or higher in order to pass the written exam. You will receive information on how to register for the exam once you apply. Please note that you will be unable to register for the exam through SMT/Prometric until you submit a CBM application and receive an acknowledgment letter from AMS. If you would like to retake the test, please contact AMS Headquarters before you re-register at Prometric.