Section 63.9985 - What is a new EGU?(a) A new EGU is an EGU that meets any of the criteria specified in paragraph (a)(1) through (a)(2) of this section. (1) An EGU that commenced construction after May 3, 2011.(2) An EGU that commenced reconstruction after May 3, 2011.77 FR 9464, Feb. 16, 2012, as amended at 77 FR 23402, Apr. 19, 2012