Tennessee Code Title 49. Education § 49-1-706

(a) Unless explicitly mandated by state or federal law, a state agency or educational institution shall obtain written consent from parents or students, in the case of students eighteen (18) years of age or older, before collecting any individual student biometric data, student data relative to analysis of facial expressions, EEG brain wave patterns, skin conductance, galvanic skin response, heart-rate variability, pulse, blood volume, posture, and eye-tracking.

(b) No state agency or educational institution shall pursue or accept any grant whether from the federal government or any private entity that requires collecting or reporting information in violation of subsection (a).

(c) No state or national student assessment shall be adopted or administered in this state that requires collecting or reporting information in violation of subsection (a).