1992—Subsec. (a).
Pub. L. 102–550, § 1021(b)(2), in first sentence, substituted “substances, mixtures, or products subject to subchapter IV of this chapter” for “substances or mixtures” and inserted “such products,” before “or such articles”.
Subsec. (b)(1).
Pub. L. 102–550, § 1021(b)(3), substituted “chemical substances, mixtures, or products subject to subchapter IV of this chapter” for “chemical substances or mixtures”.