Tennessee Code Title 48. Corporations and Associations § 48-68-104

(1) Any corporation designated by statute as a public benefit corporation or a mutual benefit corporation is the type of corporation designated by statute;

(2) Any corporation which does not come within subdivision (1) but which is recognized as exempt under § 501(c)(3) of the Internal Revenue Code (26 U.S.C. § 501(c)(3)), or any successor section, is a public benefit corporation;

(3) Any corporation which does not come within subdivision (1) or (2), but which is organized for a public or charitable purpose and which upon dissolution must distribute its assets to the United States, a state or a person which is recognized as exempt under § 501(c)(3) of the Internal Revenue Code, or any successor section, is a public benefit corporation; and

(4) Any corporation which does not come within subdivision (1), (2) or (3) is a mutual benefit corporation.