Candidates can schedule any NCCAOM exam by calling Pearson VUE directly at (888) 235-7649, Monday through Friday, 7am-7pm CT, or by scheduling online at the Pearson VUE NCCAOM Certification Testing page. The candidate’s ATT letter provides registration information and detailed instructions on how to schedule an exam. Candidates can schedule their exams within the four-year period after their application has been approved. NCCAOM exams are administered at over 250 Pearson VUE Professional Test Centers around the world. When candidates schedule an exam, they pay Pearson VUE directly using Visa, MasterCard, or American Express credit cards.