as the Director, in consultation with the task force, considers appropriate. (E) Requirements for memoranda of understanding or other appropriate agreements in the case of joint use of eligible defense items transferred under this section by more than one State or local law enforcement agency. (3) Prohibition on treatment of certain items as eligible defense items The regulations for purposes of this section shall prohibit the treatment as eligible defense items for purposes of this section of the following: (A) Mine Resistant Ambush Protected (MRAP) vehicles. (B) Remotely piloted aircraft that are armored, weaponized, or both. (C) Aircraft that are combat configured or combat coded or have no established commercial flight application. (D) Bayonets. (E) Tasers developed primarily for use by the military. (F) Any controlled defense item that cannot be purchased by State or local law enforcement agencies in the private sector. (G) Any other controlled defense item determined by the Director to be unsuitable for use by State or local law enforcement agencies. (4) Approval required before transfer of certain items (A) In general If any item specified in subparagraph (B) is an eligible defense item for purposes of this section, such item may not be transferred under this section without the approval of the Director, in consultation with an individual employed pursuant to subsection (e). (B) Items The items specified in this subparagraph are the following: (i) Weapons over .50 caliber. (ii) Grenades, flash bang grenades, grenade launchers, and grenade launcher attachments. (iii) Tactical military vehicles. (5) Limitations on transfer of tactical military vehicles to small law enforcement agencies The regulations for purposes of this section shall limit the transfer of tactical military vehicles to a State or local law enforcement agency with 10 or fewer sworn law enforcement officers as follows: (A) If the law enforcement agency has one or more functioning tactical military vehicles, a tactical military vehicle may