Accredited Configuration Engineer (ACE) Exam
There is no charge for this exam and you can sign-up for the exam in the Palo Alto Networks Learning Center.
Once certified you can download and print a Accredited Configuration Engineer certification.
The ACE credential does not require a recertification. Once you earn the credential, you are certified for life. The ACE credential changes with each major revision of the software that runs the Palo Alto Networks platform.