The Environmental Protection Agency (EPA) is taking direct final action on the "State Plan" submitted by the Commonwealth of Puerto Rico to fulfill the requirements of sections 111(d)/129 of the Clean Air Act for Commercial and Industrial Solid Waste Incineration (CISWI) units. Puerto Rico's State Plan provides for the implementation and enforcement of the Emissions Guidelines, as promulgated by EPA on December 1, 2000, applicable to existing CISWI units for which construction commenced on or before November 30, 1999. Specifically, the State Plan that EPA is approving today, establishes emission limits for organics, carbon monoxide, metals, acid gases and particulate matter and compliance schedules for the existing CISWI units located in the Commonwealth of Puerto Rico which will reduce the designated pollutants.