To direct the Secretary of Defense to allow members of the Armed Forces serving on active duty who are at least 18 years old and less than 21 years old to purchase and consume beer and wine at certain locations on military installations.

Directs the Secretary of Defense (DOD) to ensure that a member of the Armed Forces serving on active duty who is at least 18 and less than 21 years old may purchase and consume beer and wine from a location on a military installation where such beer and wine is intended to be consumed on-site (including restaurants, enlisted clubs, and morale, welfare, and recreation facilities), if such member presents a valid common access card when making the purchase.

Provides an exception with respect to the purchase of beer and wine at: (1) Army-Air Force Exchange Services and Navy Exchange facilities; (2) shoppettes; and (3) other facilities that sell beer and wine to be consumed off-site.