Blood and plasma

Tenn. Code Ann. § 67-6-304, under Exemptions.

Tenn. Code Ann. § 67-6-304

There is exempt from the tax imposed by this chapter the sale of human blood, blood plasma, or any part thereof by any institution or organization that has received a determination of exemption from the internal revenue service under § 501(c)(3) of the Internal Revenue Code (26 U.S.C. § 501(c)(3)).