(A) After July 1, 1971, no person shall cause or permit the emission into the atmosphere from any new or existing stack of gases containing more than 1,200 parts per million by volume of sulfur dioxide at 20% excess air, and after July 1, 1972, 850 parts per million, except as provided in division (B) below.
(B) The limitation set forth in division (A) above shall not apply to sulfur recovery plants or desulfurizing units employing the best available technology, as approved by the Director, for minimizing sulfur dioxide emissions, nor to other existing processes for which there is no generally accepted control method, as determined by the Director.
(Prior Code, § 102.152) Penalty, see § 95.999