14 CFR 26.3 - Definitions.
For the purposes of this part:
FAA Oversight Office is the aircraft certification office or office of the Transport Airplane Directorate with oversight responsibility for the relevant type certificate, supplemental type certificate, or manufacturer, as determined by the Administrator.
Title 14 published on 2015-11-17.
No entries appear in the Federal Register after this date, for 14 CFR Part 26.