The Environmental Protection Agency is extending the comment deadline for its mercury inventory rule from December 26, 2017 to January 11, 2018. EPA published the proposal on October 26, 2017. The proposed rule requires reporting from persons who manufacture (including import) mercury or mercury-added products, or otherwise intentionally use mercury in a manufacturing process. The reporting rule is required by the amended Toxic Substance Control Act (TSCA) to help assist EPA in publishing an inventory of mercury supply, use, and trade in the United States before April 1, 2017 and every three years thereafter. EPA published the first inventory in March 2017. Based on the information collected, TSCA further directs EPA to identify any manufacturing processes or products that intentionally add mercury and recommend actions to achieve further reductions in mercury use.