|Draft AC Number||Title||Posted||Deadline for Comments|
|150/5000 (PDF, 303 KB)||
Draft AC 150/5000-XX, Critical Aircraft and Regular Use Determination
This advisory circular defines the term Critical Aircraft and provides guidance on the use of Critical Aircraft in the conduct of facility planning studies for federally obligated airports.
|150/5100-20 (PDF, 776 KB)||
Draft AC 150/5100-20, Guidance on the Extraction of Oil and Gas at Federally Obligated Airports
This AC discusses oil and gas development on federally obligated airport land, including any drilling that penetrates the subsurface of the airport owned land. This AC does not create new requirements for on-airport or nearby off-airport land use or development. It describes how existing FAA policy, guidance, standards, and obligations, as well as other applicable laws and regulations, apply to proposed oil and gas extraction from obligated airports (both use of surface land and extraction of subsurface minerals/oil/gas).