Please submit an online application for CPAT from your RespondNH.org account. You will need to upload a medical release form if you do not have a valid form on file. After you submit your application and it is approved, you will be called for payment. After payment, you will receive a time slot for the exam.
A medical release form can be found here: https://www.nh.gov/safety/divisions/fstems/documents/FSTEMS_Medical_Release.pdf