Pub. L. 109-432, div. D, tit. I, subtit. A, ch. 1, sec. 1233
2,4-DB ACID AND 2,4-DB DIMETHYLAMINE SALT.
SEC. 1233. 2,4-DB ACID AND 2,4-DB DIMETHYLAMINE SALT. Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: “9902.23.264-(2,4-Dichlorophenoxy) butyric acid (CAS No. 94–82–6) (provided for in subheading 2918.90.20); and 4-(2,4-dichlorophenoxy)butyric acid, dimethylamine salt (CAS No. 2758–42–1) (provided for in subheading 2921.19.60)FreeNo changeNo changeOn or before 12/31/2009 ”.