On January 4, 1984, the EPA proposed, under section 4(a) of the Toxic Substances Control Act (TSCA), that manufacturers and processors of hydroquinone (CAS No. 123-31-9) conduct health and environmental effects testing of that chemical (49 FR 438).
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Federal Register notice: Hydroquinone Testing Requirements (PDF)(12 pp, 3 MB, December 30, 1985)