Reporting Requirements for the Mercury Inventory of the Toxic Substances Control Act
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Rule Summary
On June 27, 2018, EPA published in the Federal Register a final rule to require reporting from persons who manufacture (including import) mercury or mercury-added products, or otherwise intentionally use mercury in a manufacturing process. The information collected through the reporting requirements are used to develop an inventory of mercury supply, use, and trade in the United States. Based on the information collected, the Agency will identify any manufacturing processes or products that intentionally add mercury and recommend actions to achieve further reductions in mercury use.
On November 8, 2021, EPA published a final rule to implement an order issued by the U.S. Court of Appeals for the 2nd Circuit on June 5, 2020. The 2nd Circuit vacated the exemption at 40 CFR 713.7(b)(2) for persons who import pre-assembled products that contain a mercury-added component (e.g., a watch that contains a mercury-added battery). That rule effectuated the vacatur ordered by the 2nd Circuit and made necessary amendments to corresponding text in 40 CFR 713.7(b).
Read the amendments to the reporting requirements.
Access the public docket for mercury: EPA-HQ-OPPT-2017-0421.
Rule History
2026 Mercury Inventory Report
On April XX, 2026, EPA published the third in a series of triennial reports on the supply, use, and trade of mercury in the United States, supported by the Agency’s mercury inventory reporting rule. The report presents aggregated data submitted on imported mercury, mercury manufactured in the United States, imported mercury-added products, mercury-added products made in the United States, and mercury used in manufacturing processes. The inventory report also provides a broad view of U.S. mercury stored, sold, and exported, as well as industry sectors and countries involved in the supply, use, and trade of mercury.
Read the 2026 Mercury Inventory Report.
Past Mercury Inventory Reports
Read the 2023 Mercury Inventory Report.
Read the 2020 Mercury Inventory Report.
The publication of the 2020 Mercury Inventory Report represents the completion of a suite of mandates related to elemental mercury and mercury compounds per the Frank R. Lautenberg Chemical Safety for the 21st Century Act amendments to the TSCA.
- In August 2016, EPA released a list of five mercury compounds that are prohibited from export effective January 1, 2020.
- In March 2017, EPA used publicly available data for an initial Mercury Inventory Report prior to the promulgation of the mercury inventory reporting rule and establishment of the electronic reporting application.
- In June 2018, EPA published the mercury inventory reporting rule, which established the reporting requirements that will support the 2020 and subsequent, triennial inventories.
Additional Resources
Resources for determining if you need to report to EPA under the final rule:
- Frequent Questions on the Final Rule
- Compliance Guide: Reporting Requirements for the Mercury Inventory of the Toxic Substances Control Act (pdf)
- Webinars on the Mercury Inventory Reporting Rule
Resources for reporting to EPA under the final rule: