6368.11.
(a) There are exempted from the taxes imposed by this part, the gross receipts from the sale in this state of, and the storage, use, or other consumption in this state of, a fuel-cell vehicle, or fuel-cell system used exclusively for the purpose of upgrading a fuel-cell vehicle sold or leased to a qualified person.(b) For the purposes of this section:
(1) “Fuel-cell vehicle” means a heavy‑duty public transit bus, of no less than 40 feet in length, whose primary source of power is derived from a fuel-cell system.
(2) “Fuel-cell system” means a fuel-cell system that chemically combines hydrogen and oxygen to generate electricity to energize electric drive motors.
(3) “Qualified person” means a public agency, public transit district, or a public local or regional transportation entity organized under the laws of this state.