If by "turnout", you mean turning lane, yes it is illegal to use a turn lane to pass.Another View: I believe the first contributor may have misunderstood the question. It is a lawful and an often done practice for heavy trucks and slow vehicles to turn off the main travelled lane of the highway at turnout locations in order to let backed up traffic pass them by.
It depends on how the lane is marked. In some areas it is used strictly to allow for making left turns. In other states it can be used for passing. Pay attention to the lane markings and check the specific traffic laws for your particular state.
If the lane is specifically marked as a Left Turn Only lane then yes.
on a one-way roadway when each lane is marked with a broken white line, you may drive in any lane
ON A ONE-WAY ROADWAY EACH LANE IS MARKED WITH A BROKEN WHITE LINE,YOU MAY DRIVE ANY LANE
On narrow roads, a turn out lane creates an area where slower traffic can pull over to allow other vehicles to pass. They are used where the nature of the road precludes safely passing in the opposite lane. You should use the turnout lane when other traffic wants to pass you.
Cycle lanes. These are shown by road markings and signs. You MUST NOT drive or park in a cycle lane marked by a solid white line during its times of operation. Do not drive or park in a cycle lane marked by a broken white line unless it is unavoidable. You MUST NOT park in any cycle lane whilst waiting restrictions apply. (I SOURCED THIS FROM THE DVLA OFFICIAL SITE)
If you intend to turn right, move into the lane marked by the sign. If you do not, leave that lane.
for passing other cars
Memory Lane - 1947 1950 Thanksgiving Special was released on: USA: 24 November 1950
Memory Lane - 1947 1949 Thanksgiving Special was released on: USA: 24 November 1949
Memory Lane - 1947 1948 Thanksgiving Day Special was released on: USA: 25 November 1948