On June 22, 2016, President Obama signed into law the Frank R. Lautenberg Chemical Safety for the 21st Century Act which amends the Toxic Substance Control Act (TSCA), the Nation's primary chemicals management law. A summary of the new law, which includes much needed improvements to TSCA, is available at https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/frank-r-lautenberg-chemical-safety-21st-century-act. This particular rulemaking effort involves the revised TSCA section 8(b)(10)(D), which requires EPA to issue a final rule within 2 years of the enactment TSCA amendments to establish reporting deadline(s) and information requirements for the purpose of assisting EPA's update and publication of the statutorily-mandated inventory of mercury supply, use, and trade in the United States. The reporting requirements will apply to any person who manufactures mercury or mercury-added products or otherwise intentionally uses mercury in a manufacturing process.