(a) There are exempted from taxes imposed by this part the gross receipts from the sale of and the storage, use, or other consumption in this state of either of the following:
(1) Organic products grown expressly for fuel purposes.
(2) Waste byproducts from agricultural or forest products operations, municipal refuse, or manufacturing which are used in an industrial facility as a fuel source in lieu of the use of either oil, natural gas, or coal.
(b) In addition to subdivision (a), the exemption under this section shall include the use of still gas produced in the refining process from purchased crude oil.
(Amended by Stats. 1986, Ch. 254, Sec. 1. Effective July 3, 1986.)