Richard Denison, Ph.D., is a Lead Senior Scientist.
Part 1 Part 2
This is the second in a series of blog posts looking at less talked-about, but critically important, elements of bipartisan legislative proposals to reform the Toxic Substances Control Act (TSCA). This post deals with EPA authority to review new chemicals prior to their entry into commerce.
TSCA divided the universe of chemicals into two groups: “Existing chemicals” are those on the market at the time the first TSCA Inventory was established (1979), numbering some 62,000 chemicals. These chemicals were grandfathered in by the original law, with no mandate for them to be tested or reviewed for safety. “New chemicals” are those that entered commerce at some point since 1979, numbering some 23,000 chemicals. Between 500 and 1,000 new chemicals enter commerce in a typical year. (Given these large numbers, it’s surprising how relatively little focus there has been on the way bipartisan reform proposals would address new chemicals. I’ll amplify on this point at the end of this post.) Read More