The Naturist Action Committee (NAC) is a nine-member volunteer committee that functions as the political adjunct to The Naturist Society (TNS), based in Oshkosh, Wisconsin. While TNS is a national for-profit advocacy group for Naturism, NAC is a non-profit donor-supported organization that promotes and defends naturist interests in the courts, before legislative bodies, at universities, and to local business communities. NAC board members are elected by TNS members on a three-year rotation basis.