(1) There is established the highway patrol officer David DeLaittre memorial highway on existing U.S. highway 287 and Montana highway 2 between mile 93.3 and mile 97.3.
(2) When existing road signs on the designated highway need replacement, the department shall provide appropriate markers to recognize the memorial designation of the highway.
(3) Maps that identify roadways in Montana must be updated to reflect the memorial designation in subsection (1) when the maps are updated.