41 C.F.R. § 102-33.210
Excess aircraft
If aircraft are excess, you must:
(a) Reassign them within your agency if a sub-agency can use them; or
(b) Report them as excess property to GSA if no sub-agencies can use them.
If aircraft are excess, you must:
(a) Reassign them within your agency if a sub-agency can use them; or
(b) Report them as excess property to GSA if no sub-agencies can use them.