Department of Transportation

70:01:02:21 -- Custer County speed zone rule

70:01:02:21 – Custer County speed zone. A 65 miles per hour speed limit is being increased to 70 miles per hour on State Trunk Highway 79 from the north side of Hermosa to the Pennington County line. The purpose of this speed zone change is to enhance safe and efficient travel.

New content is added below as the draft rules move through the rule-making process.

Interim Rules Hearing
Important Dates
Public Hearing:
Comment Deadline:
Interim Rules Committee Hearing:
Filed-Secretary of State:
Rule Effective:
Agency Contact: Karla Engle mail to: