Conn. Gen. Stat. § 13b-31e: Regulations.

The Commissioner of Transportation, in consultation with the Commissioner of Energy and Environmental Protection and the Commissioner of Economic and Community Development, shall adopt regulations in accordance with the provisions of chapter 54 setting forth special maintenance and improvement standards for scenic roads which shall include provisions for widening of the right-of-way or traveled portion of the highway and for guardrails, paving, changes of grade, straightening and removal of stone walls or mature trees. In adopting such regulations the commissioner shall consider the protection of historic and natural features of scenic roads.