Created by the legislature, Montana’s 58 CDs provide leadership for locally led conservation. CDs are political divisions of state government. Each is governed by a non-paid elected and/or appointed board of supervisors. CDs in Montana are part of a national network of over 3,000 similarly organized conservation districts in all 50 states, the District of Columbia, and some U.S. territories. Conservation districts are required by law to administer the Natural Streambed and Land Preservation Act, also known as the “310 Law”.