Improvements may be made to some of the Group 2 and Group 3 highways indicated on Group Map 1. Those improvements may make it appropriate to reclassify the highway or section of highway to a higher group rating which would allow vehicles or combinations of greater dimension. In this respect the Chief Engineer is authorized to reclassify the group rating of such highways as he may consider appropriate when, in his judgment, such a reclassification would not diminish the safety afforded the traveling public. Such reclassification shall be made by a written order signed by the Chief Engineer.
Or. Admin. Code § 734-071-0015
Stat. Auth.: ORS 184.616, 184.619, 810 & ORS 818
Stats. Implemented: ORS 810.060