Implementing Toxicity Testing in the 21st Century: Challenges and Opportunities

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International Journal of Risk Assessment and Management

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Int'l J. Risk Assessment & Mgmt.


The publication of the US National Academy of Sciences report Toxicity Testing in the Twenty-First Century: A Vision and a Strategy (TT21C) has led to the development of new scientific techniques to modernize regulatory toxicity testing. From 2009 to 2010, a series of five international symposia were held to examine challenges, opportunities and policy issues associated with TT21C. Seven key themes emerged based on these meetings; that the TT21C vision and strategy: 1) is not self-implementing; 2) demands new toxicology techniques; 3) has a number of scientific knowledge gaps that need to be filled; 4) requires evaluation of the new tests to determine relevance, reliability, validity and regulatory acceptance by government agencies; 5) can be implemented under TSCA and the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) as currently written; 6) requires multi-stakeholder input and commitment; 7) should harmonize acceptance of test data and methods on an international level.

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