SEC. 1145. DIETHYL IMIDAZOLIDINONE (DMI). Subchapter II of chapter 99 is amended by inserting in the numerical sequence the following new heading: “ 9902.29.26 1,3-Diethyl-2-imidazolidinone (CAS No. 80–73–9) (provided for in subheading 2933.29.90) Free No change No change On or before 12/31/2003 ”.