Strategy:

How Does It Work?

How Are New Chemicals Reviewed?

Defined here: 15 USC Ch. 53: Toxic Substances Control Act

Major Problem!
Chemicals that existed before 1976, when the TSCA was passed, are grandfathered in! This means they are not subject to new chemical review. They are assumed safe! Procedurally, this means they were automatically added to the "TCSA Inventory".
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Ongoing Updates

Trump Admin Environment Rollbacks#Toxic Substances Control Act Risk Evaluation Changes