The purpose of the Extended Range Operations with Twin-Engine Aeroplane (EDTO) Checklist is to assist owners / operators with a view to ensuring that application submitted to the NCAA for EDTO approval are standardized and include all items that are required by Nig CARs 8.6.2.10 and 8.6.2.11 and also other additional NCAA nationally required items. This checklist, when completed, should be submitted with the supportingprogrammes orreference made to appropriate documents.