Excess emissions
Excess emissions means any ton, or portion of a ton, of sulfur dioxide emitted by the CAIR SO2 units at a CAIR SO2 source during a control period that exceeds the CAIR SO2 emissions limitation for the source, provided that any portion of a ton of excess emissions shall be treated as one ton of excess emissions.
Source
40 CFR § 96.202
Scoping language
The terms used in this subpart and subparts BBB through III shall have the meanings set forth in this section as follows: