Tenn. Code Ann. § 68-3-304: Birth in moving conveyance.

(a) When a birth occurs on a moving conveyance within the United States and the child is first removed from the conveyance in this state, the birth shall be registered in this state and the place where it is first removed shall be considered the place of birth.

(b) When a birth occurs on a moving conveyance while in international waters or airspace or in a foreign country, and the child is first removed from the conveyance in this state, the birth shall be registered in this state; but the certificate shall show the actual place of birth insofar as can be determined.