According to an item in the Spring 2016 Regulatory Agenda, the U.S. Environmental Protection Agency (EPA) is “developing a final rule related to” its April 6, 2015, proposal to require reporting and recordkeeping requirements under Section 8(a) of the Toxic Substances Control Act (TSCA) for certain chemical substances when they are manufactured or processed at the nanoscale. EPA proposed to require persons that manufacture, import, or process, or intend to manufacture, import, or process these chemical substances to report to EPA certain information, including the specific chemical identity, production volume, methods of manufacture and processing, exposure and release information, and existing data concerning environmental and health effects. The proposal involves one-time reporting for existing nanoscale materials and one-time reporting for new discrete nanoscale materials before they are manufactured or processed. According to EPA, this information would facilitate its evaluation of the materials and a determination of whether further action, including additional information collection, is needed. EPA notes that, consistent with the President’s memorandum for Executive Departments and Agencies regarding Principles for Regulation and Oversight of Emerging Technologies, “this rule would facilitate assessment of risks and risk management, examination of the benefits and costs of further measures, and making future decisions based on available scientific evidence.” While the regulatory agenda item states that EPA intends to promulgate a final rule in October 2016, EPA has not indicated how it intends to address comments on the proposed rule. The Office of Management and Budget (OMB) took several years to review the proposed rule. OMB’s Office of Information and Regulatory Affairs (OIRA) issued a December 17, 2015, memorandum concerning “Regulatory Review at the End of the Administration,” which states that “agencies should strive to complete their highest priority rulemakings by the summer of 2016 to avoid an end-of-year scramble that has the potential to lower the quality of regulations that OIRA receives for review and to tax the resources available for interagency review.” EPA has not yet submitted a final rule to OMB for review.