(1) The Oregon Transportation Commission shall designate all-terrain vehicle highway access routes on state highways throughout this state for the purpose of authorizing incidental use of all-terrain vehicles within the state highway right of way.
(2) The commission shall designate all-terrain vehicle highway access routes under this section after consultation with the All-Terrain Vehicle Highway Access Routes Advisory Committee established under ORS 821.335.
(3) A grant of authority under this section to operate an all-terrain vehicle on an all-terrain vehicle highway access route is effective when signs are posted giving notice that the commission has designated a portion of the state highway right of way as an all-terrain vehicle highway access route.