Your submission of the Formal Application Letter and the required items on the Pre-Application Checklist (PAC) begins the actual certification process. The Certification Process Document (CPD), located in FAA Order 8900.1 Volume 2, Chapter 3 Section 1 - 5: (Section 1, Section 2, Section 3, Section 4, Section 5), delineates your role and the role of the Certification Project Team (CPT) during the entire certification process. Use the CPD as a reference while you complete requirements for each of the certification process phases.