With the promulgation of the Subpart CC air emission standards (59 FR 62896; December 6, 1994) and amendments (61 FR 59932; November 25, 1996; and 62 FR 64636; December 8, 1997; and 64 FR 3382; January 21, 1999), LQGs must comply with all applicable air emission standards in Part 265, Subparts AA, BB, and CC. These regulations are discussed in detail in the module entitled Air Emissions.