 | United States. Congress. Senate. Committee on Commerce - 1972 - 1466 pages
...primary purpose of reducing the volume of the waste by removing combustible matter. Modification ; Any physical change in, or change in the method of operation of, a stationary source which increases or decreases the amount of any air pollutant emitted by such facility,... | |
 | 1972 - 504 pages
..."Construction" means fabrication, erection, or installation of an affected facility. (h) "Modification" means any physical change in, or change in the method of operation of, an affected facility which increases the amount of any air pollutant (to which a standard applies)... | |
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stationary source" means any building, structure, facility, or installation which emits or may emit any air pollutant. (4) The term "modification" means any physical change in, or change in the method of operation of, a stationary source which increases... 
