Tennessee Code Title 62. Professions, Businesses and Trades § 62-2-906

(a) A corporation, partnership or firm may use the title “registered interior designer;” provided, that at least one (1) of the principals or officers of the corporation, partnership or firm is in responsible charge of the practice and is registered as a registered interior designer under this chapter.

(b) Any person, firm, company, business, corporation or other entity that was organized and doing business prior to April 16, 1991, and whose corporate name includes the appellation “interior design” may continue to use the corporate name and shall not be required to register pursuant to this chapter.

(c) Nothing in this section shall be construed to authorize persons employed by such entities to use the title “registered interior designer” unless the persons are registered pursuant to this chapter.