Excess emissions
Excess emissions means, with respect to emissions monitoring, the concentration of the outlet stream of the air pollution control device is outside the acceptable range or limits for the baseline concentration given in 63.563(4) through (9).
Source
40 CFR § 63.561
Scoping language
As used in this subpart, all terms not defined herein shall have the meaning given them in the Clean Air Act or in subpart A of this part.