Pub. L. 111-227, tit. I, sec. 1174
N-PHENYL-P-PHENYLENEDIAMINE.
SEC. 1174. N-PHENYL-P-PHENYLENEDIAMINE. Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: “9902.40.81N-phenyl-p-phenylenediamine (CAS No. 101–54–2) (provided for in subheading 2921.51.50)5.4%No changeNo changeOn or before 12/31/2012”.