Concerning 70:01:02:02 – Pennington County speed zone rule, the effect of the proposed amendments will be to: (1) delete limited speed zones on highway segments in Pennington County that have been obliterated or transferred to a local government; and (2) establish a limited speed zone for the crossroad over Interstate Highway 90 at mileage reference marker 59.19 (LaCrosse Street) in Pennington County. The reasons for adopting the proposed amendments are to eliminate outdated speed zone provisions and enhance safety. As to 70:01:02:57 – Spink County speed zone rule, the effect of the proposed amendments will be to change the speed limits on U.S. Highway 281 and U.S. Highway 212 in and around Redfield. The reason for adopting the proposed amendments is to enhance safety.