Pub. L. 109-280, tit. XIV, subtit. A, ch. 1, sec. 1451
SPIROMESIFEN.
SEC. 1451. SPIROMESIFEN. Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: “ 9902.10.713,3-Dimethylbutanoic acid, 2-oxo-3-(2,4,6-trimethylphenyl)–1-oxaspiro[4.4]non-3-en-yl ester (CAS 283594–90–1) (provided for in subheading 2932.29.10)FreeNo changeNo changeOn or before 12/31/2009”.