Aircraft Certification Home Page (FAA) - Describes the FAA's mission for certification of civil aircraft.  Extensive pick list on this page takes you to regs, manuals, notices, circulars, etc., relevant to certification of new and aging aircraft. Aircraft Certification Technical Training Program - Information on sequence of courses, course contents, course dates and tuition, etc., run by FAA in Oklahoma City for engineers, inspectors, and flight-test pilots/ engineers. Chicago Aircraft Certification Office (FAA) - Page provides pick lists for documents related to aircraft certification tools and to continued airworthiness, as well as contacts and directions for the Chicago office. The "General Certification Guidance Page" subpage actually covers specifics about project applications for a Supplement Type Certificate (STC). Engine and Propeller Directorate (FAA) - Page provides addresses and contacts for related FAA offices, but no specific information on processes or standards for certification of engines. Functional Hazard Assessment (FHA) - Details of developing an FHA can be found in Society of Automotive Engineers (SAE) Documents ARP4754, pages 34 - 35 and ARP4761, pages 16, 17, 31 - 39. This site enables you to purchase these standards documents from the SAE. Rotorcraft Directorate (FAA) - Site contains airworthiness/ emergency airworthiness directives, information on restricted-category helicopters, rotorcraft branch offices, and downloadable documents pertinent to rotorcraft certification. Small Airplane Directorate (FAA) - Page has Kansas City headquarters contacts and lists addresses and contacts for Aircraft Certification Offices and Manufacturing Inspection District/ Satellite Offices. For useful information on the certification process, itself, see the above link for the Chicago Acft. Certification Office. Transport Airplane Directorate (FAA) - The Directorate manages the Aircraft Certification Regulatory Program (ACRP), including Type, Production, and Airworthiness Certification Programs for transport aircraft. Page is specific to "NW Region" (actually covers all mountain and west-coast states) and includes description of services, locations, mission statement, and contacts for the headquarters in Renton, WA.