U.S. Customers:  If you need assistance in filling out your form or guidance on manufacturing and airworthiness related activities, contact the appropriate FAA Field Office that serves your geographic area. For example, for manufacturing activities you would contact a (MIDO, MIO, or ACO). For airworthiness activities you would contact a (MIDO, MIO, or FSDO).  http://www.faa.gov/aircraft/air_cert/locate_office/office_desc/

Foreign Customers: Contact your appropriate Civil Aviation Authority (CAA).  If your CAA is unable to answer your question regarding the FAA Form 8130-3, the CAA will contact the FAA through proper channels for guidance.  Only CAAs may contact the FAA directly. 

• FAA Form 8130-3 (PDF, 523 KB)