Due to receipt of an adverse comment, EPA is removing the direct final rule which approved 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. The direct final rule was published on October 31, 2003 (68 FR 62019). As stated in the direct final rule, if adverse comments were received by December 1, 2003, a timely withdrawal would be published in the Federal Register. EPA subsequently received an adverse comment. EPA will address the comments in a subsequent final action based upon the proposed action also published on October 31, 2003 (68 FR 62040). EPA will not institute a second comment period on this action.