From Oregon Revised Statutes:
811.170 Violation of open container
law; penalty. (1) A person commits the offense
of violation of the open container law
in a motor vehicle if the person does any of
the following:
(a) Drinks any alcoholic liquor in a motor
vehicle when the vehicle is upon a highway.
(b) Possesses on one′s person, while in a
motor vehicle upon a highway, any bottle,
can or other receptacle containing any alcoholic
liquor, which has been opened, or a
seal broken, or the contents of which have
been partially removed.
(c) Keeps in a motor vehicle when the
vehicle is upon any highway, any bottle, can
or other receptacle containing any alcoholic
liquor, which has been opened, or a seal
broken, or the contents of which have been
partially removed. The following apply to
this paragraph:
(A) This paragraph applies only to the
registered owner of any motor vehicle or, if
the registered owner is not then present in
the vehicle, to the driver of the vehicle.
(B) This paragraph does not apply if the
bottle, can or other receptacle is kept in the
trunk of the vehicle, or kept in some other
area of the vehicle not normally occupied by
the driver or passengers if the vehicle is not
equipped with a trunk.
(C) For purposes of this paragraph, a
utility compartment or glove compartment is
considered within the area occupied by the
driver and passengers.
(D) This paragraph does not apply to the
living quarters of a camper or motor home.