Sec. 19. (a) Except as otherwise provided in subsection (b), a county, a municipality, or another political subdivision (as defined in IC 36-1-2-13) of the state may not enact or enforce an ordinance, resolution, policy, or rule to regulate P2P vehicle sharing.
(b) A board of an airport authority or a board of aviation commissioners may enact or enforce an ordinance, resolution, policy, or rule to regulate P2P vehicle sharing.