Treatment facility
(2) Treatment facility. For purposes of subparagraph (1)(i) of this paragraph, a treatment facility is a facility which (i) is used to abate or control water or atmospheric pollution or contamination by removing, altering, disposing, or storing of pollutants, contaminants, wastes, or heat and (ii) is used in connection with a plant or other property in operation before January 1, 1969. Determinations under subdivision (i) of this subparagraph shall be made solely by the Federal certifying authority. See subparagraph (3) of this paragraph. For meaning of the phrases plant or other property and in operation before January 1, 1969, see subparagraphs (4) and (5), respectively, of this paragraph. (3) Facilities performing multiple functions or used in connection with several plants, etc. (i) If a facility is designed to perform or does perform a function in addition to abating or controlling water or atmospheric pollution or contamination by removing, altering, disposing or storing pollutants, contaminants, wastes, or heat, such facility shall be a treatment facility only with respect to that part of the cost thereof which is certified by the Federal certifying authority as attributable to abating of controlling water or atmospheric pollution or contamination. For example, if a machine which performs a function in addition to abating water pollution is installed at a cost of $100,000 in, and is used only in connection with, a plant which was in operation before January 1, 1969, and if the Federal certifying authority certifies that $30,000 of the cost of such machine is allocable to its function of abating water pollution, such $30,000 will be deemed to be the adjusted basis for purposes of determining gain for purposes of paragraph (a) of 1.169-3. (ii) If a facility is used in connection with more than one plant or other property, and at least one such plant or other property was not in operation before January 1, 1969, such facility shall be a treatment facility only to the extent of that part of the cost thereof certified by the Federal certifying authority as attributable to abating or controlling water or atmospheric pollution in connection with plants or other property in operation before January 1, 1969. For example, if a machine is constructed after December 31, 1968, at a cost of $100,000 and is used in connection with a number of plants only some of which were in operation before January 1, 1969, and if the Federal certifying authority certifies that $20,000 of the cost of such machine is allocable to its function of abating or controlling water pollution in connection with the plants or other property in operation before January 1, 1969, such $20,000 will be deemed to be the adjusted basis for purposes of determining gain for purposes of paragraph (a) of 1.169-3. In a case in which the Federal certifying authority certifies the percentage of a facility which is used in connection with plants or other property in operation before January 1, 1969, the adjusted basis for the purposes of determining gain for purposes of paragraph (a) of 1.169-3 of the portion of the facility so used shall be the adjusted basis for determining gain of the entire facility multiplied by such percentage. (4) Plant or other property. As used in subparagraph (2) of this paragraph, the phrase plant or other property means any tangible property whether or not such property is used in the trade or business or held for the production of income. Such term includes, for example, a papermill, a motor vehicle, or a furnace in an apartment house. (5) In operation before January 1, 1969. (i) For purposes of subparagraph (2) of this paragraph and section 169 (d), a plant or other property will be considered to be in operation before January 1, 1969, if prior to that date such plant or other property was actually performing the function for which it was constructed or acquired. For example, a papermill which is completed in July 1968, but which is not actually used to produce paper until 1969 would not be considered to be in operation before January 1, 1969. The fact that such plant or other property was only operating at partial capacity prior to January 1, 1969, or was being used as a standby facility prior to such date, shall not prevent its being considered to be in operation before such date. (ii)(a) A piece of machinery which replaces one which was in operation prior to January 1, 1969, and which was a part of the manufacturing operation carried on by the plant but which does not substantially increase the capacity of the plant will be considered to be in operation prior to January 1, 1969. However, an additional machine that is added to a plant which was in operation before January 1, 1969, and which represents a substantial increase in the plant's capacity will not be considered to have been in operation before such date. There shall be deemed to be a substantial increase in the capacity of a plant or other property as of the time its capacity exceeds by more than 20 percent its capacity on December 31, 1968.