Ill. Admin. Code tit. 35, § 225.480
In addition to the CAIR NOx allowances allocated pursuant to Section 225.425, the USEPA has allowed allocation of an additional 11,299 CAIR NOx allowances in Illinois as a compliance supplement pool to Illinois for the control period in 2009. However, for the purposes of public health and air quality improvements, none of these allowances will be allocated.
(Source: Added at 31 Ill. Reg. 12864, effective August 31, 2007)