The Toxic Substance Control Act (TSCA) gives the EPA the authority to take action to address unreasonable risk to public health or the environment from chemicals on the market. The role of TSCA was significantly amended under the Frank R. Lautenberg Chemical Safety for the 21^st Century Act to introduce a number of key changes, including:

• Requiring the EPA to evaluate the safety of existing chemicals in commerce, starting with those most likely to cause risks.
• Requiring risk-based chemical assessments.
• Empowering the EPA to require the development of chemical information necessary to support these evaluations.
• Establishing clear and enforceable deadlines that ensure both timely review of prioritized chemicals and timely action on identified risks.
• Increasing the public transparency of chemical information by limiting unwarranted claims of confidentiality and allowing for the appropriate sharing of confidential information with states and health and environmental professionals. 

The EPA maintains a list of Ongoing and Completed Chemical Risk Evaluations under TSCA that can help provide visibility on the review process and the chemicals that have undergone risk evaluation and have risk management rules.

Ongoing and Completed Chemical Risk Evaluations under TSCA

Chemicals with Published (or Rapidly Approaching) Final Risk Management Rules Requiring Management as EPA TSCA High Priority Chemicals.  Please following the links below for more information on EHS support provided to allow for the safe use of these materials.

• Methylene chloride (CAS 75-09-2)
• Carbon Tetrachloride (CAS 56-23-5) – Final Rule Released, move information coming soon
• Trichloroethylene (CAS 79-01-6) - Final Rule Released, move information coming soon
• Perchloroethylene or Tetrachloroethylene (CAS 127-18-4) – Final Rule Released, move information coming soon
• 1-bromopropane (CAS 106-94-5) – Pending Final Rule Release
• 1,4-dioxane (CAS 123-91-1) – Pending Final Rule Release