(a) Congressional statement of findings and purposeThe Congress finds and declares that acid precipitation resulting from other than natural sources—
could contribute to corrosion of metals, wood, paint, and masonry used in construction and ornamentation of buildings and public monuments;
(b) Congressional declaration of purposeThe Congress declares that it is the purpose of this subchapter—
based on the results of the research program established by this subchapter and to the extent consistent with existing law, to take action to the extent necessary and practicable (A) to limit or eliminate the identified emissions which are sources of acid precipitation, and (B) to remedy or otherwise ameliorate the harmful effects which may result from acid precipitation.
(c) “Acid precipitation” defined