(A) The provisions of this article shall not apply to:
(1) Maintenance structural changes or minor repair which does not change capacity of such process, fuel burning, refuse burning or control equipment and which does not involve any change in the quality, nature or quantity of emission of air contaminants therefrom;
(2) Equipment utilized for any mode of transportation;
(3) Fuel burning, refuse burning and cooking equipment utilized in connection with any structure designed and used exclusively as a dwelling for not more than three families;
(4) Laboratory equipment used exclusively for chemical or physical analysis or experimentation;
(5) Motor vehicles;
(6) Portable brazing, soldering or welding equipment; and
(7) All gas fuel and No. 1 and No. 2 fuel-oil burning equipment used for space heating, service water heating and electric power generation.
(B) Nor to the following equipment:
(1) Comfort air-conditioning or comfort ventilating systems which are not designed to remove air contaminants generated by or released from specific units of equipment;
(2) Cold storage refrigeration equipment;
(3) Vacuum pumps in laboratory or pilot plant operations;
(4) Equipment used for portable steam cleaning; or
(5) Equipment used for hydraulic or hydrostatic testing.
(C) Nor to the following equipment or any exhaust system or collector serving exclusively such equipment:
(1) Blast cleaning equipment using a suspension of abrasive in water;
(2) Bakery ovens where the products are edible and intended for human consumption;
(3) Confection cookers where the products are edible and intended for human consumption; or
(4) Containers, reservoirs or tanks used exclusively for:
(a) Storage of butane, propane or liquefied petroleum gas; or
(b) Storage of lubricating oils.
(Prior Code, § 9.209)