Links

FAA – Field Approval Process
The field approval process is used for one serial numbered aircraft in accordance with FAA Order 8900.1, Vol. 4, Chapter 9.
www.faa.gov/aircraft/air_cert/design_approvals/field_approvals/field_approv_proc

Air Services Australia – Keeping safety first
www.airservicesaustralia.com

Civil Aviation Safety Authority of Australia
http://www.casa.gov.au

Euro Control – website with FAQ’s that may be of interest:-
https://www.eurocontrol.int

Spruce – Aircraft speciality

https://www.aircraftspruce.com