Bioconcentration,chemical fate,and environmental effects testing under section 4 of the Toxic Substances Control Act

As of December 31, 1988, the U.S. Environmental Protection Agency (EPA) had published 49 Federal Register (FR) notices acknowledging, proposing, or requiring development of bioconcentration, chemical fate, or environmental effects testing data under Section 4 of the Toxic Substances Control Act (TSCA). These FR notices included 5 Decisions Not to Test (DNTs) that acknowledged industry testing, 19 Notices of Proposed Rulemaking (NPRs) that proposed testing by industry, 9 Notices of Final Rulemaking (NFRs), and 2 Consent Orders (COs) that required industry testing as well as 7 proposed and 7 final Negotiated Testing Agreements (NTAs). Two bioconcentration, 12 chemical fate, and 28 environmental effects tests were submitted to the EPA by industry as a result of issuing DNTs. Industry completed 3 bioconcentration, 86 chemical fate, and 151 environmental effects tests after publication of NTAs. Two bioconcentration, 11 chemical fate, and 14 environmental effects tests were completed as a result of publishing NFRs; 1 chemical fate and 5 environmental effects tests were completed under a CO. As of December 31, 1988, a total of 7 bioconcentration, 110 chemical fate, and 234 environmental effects tests had been completed under TSCA Section 4.