Pub. L. 101-382, tit. III, subtit. A, pt. 1, sec. 313
MERCURIC OXIDE.
SEC. 313. MERCURIC OXIDE. Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: “ 9902.28.25 Mercuric oxide (provided for in subheading 2825. 90.60) Free No change No change On or before 12/31/92 ”