National Conference of State Legislatures

The National Conference of State Legislatures (NCSL), established in 1975, is a "nonpartisan public officials' association composed of sitting state legislators" from the states, territories and commonwealths of the United States. == Background == According to their website, the mission of the Conference is: to advance the effectiveness, independence and integrity of legislatures and to foster interstate cooperation . . .

Source: Wikipedia — National Conference of State Legislatures (CC BY-SA 4.0)