PUC §353.2: (a) As used in this article, “ultraclean and low-emission distributed generation” means any electric generation technology that meets both of the following criteria: (1) Commences initial operation be

(a) As used in this article, “ultraclean and low-emission distributed generation” means any electric generation technology that meets both of the following criteria: (1) Commences initial operation between January 1, 2003, and December 31, 2008. (2) Produces zero emissions during its operation or produces emissions during its operation that are equal to or less than the 2007 State Air Resources Board emission limits for distributed generation, except that technologies operating by combustion must operate in a combined heat and power application with a 60-percent system efficiency on a higher heating value. (b) In establishing rates and fees, the commission may consider energy efficiency and emissions performance to encourage early compliance with air quality standards established by the State Air Resources Board for ultraclean and low-emission distributed generation.