Deletes everything after the enacting clause. Creates the Illinois Appliance Efficiency Standards Act. Provides minimum efficiency standards for certain new products sold or installed in this State including: (1) medium voltage dry-type distribution transformers; (2) metal halide lamp fixtures; (3) furnaces and boilers; (4) single-voltage external AC to DC power supplies; and (5) State-regulated incandescent reflector lamps. Sets forth certain exemptions from these minimum efficiency standards. Provides that beginning January 1, 2008, no new medium voltage dry-type distribution transformer, single-voltage external AC to DC power supply, or State-regulated incandescent reflector lamps may be sold or offered for sale in this State unless the efficiency of the new product meets or exceeds the applicable minimum efficiency standards. Provides that beginning January 1, 2009, no new metal halide lamp fixture may be sold or offered for sale in this State unless the efficiency of the new product meets or exceeds the applicable minimum efficiency standards. Requires the Department of Commerce and Economic Opportunity, in consultation with the Attorney General, to determine if implementation of State standards for furnaces and boilers requires a waiver from federal preemption. Provides that if a waiver from federal preemption is necessary, the State standard shall go into effect at the earliest date permitted by federal law. Sets forth that if a waiver from federal preemption is not needed for the State then the State standards shall go into effect on June 1, 2008. Requires manufacturers to test their products and certify the results to the Department. Adds other provisions. Effective immediately.