NASHVILLE (AP) - When in the course of human events someone wants to give a shampoo at a salon, a conservative think tank says they shouldn't have to get a license.

Media report the Beacon Center of Tennessee filed a lawsuit Monday challenging the state's shampoo licensing requirement on behalf of Tammy Nutall-Pritchard, who wants to shampoo hair at a salon in Memphis. It's filed in Davidson County's Chancery Court in Nashville.

Beacon Center director of litigation Braden Boucek says shampooing is something people do every day and "it's hard to see a case for why that needs to be licensed."

Tennessee Department of Commerce & Insurance spokesman Kevin Walters declined to comment.

The lawsuit challenges the state's licensing laws, arguing that the requirement limits competition, violating the Tennessee Constitution's ban on monopolies.