JOB SUMMARY: This announcement has been extended to 5/13/24 due to USAjobs unavailability scheduled for 5/10-11. This Senior-Level (SL) position is in the Office of Chemical Safety and Pollution Prevention, Office of Pollution Prevention and Toxics. About OCSPP. This is an office-centered position--you must physically report to one of the duty stations stated in this announcement on a regular basis (location TBD after candidate selected). Partial work-from-home flexibilities may be authorized. MAJOR DUTIES: The Office of Pollution Prevention and Toxics (OPPT), within the Office of Chemical Safety and Pollution Prevention (OCSPP), is responsible for the implementation of several important environmental statutes with broad crossmedia impacts, including the Toxic Substances Control Act (TSCA). OPPT must evaluate new and existing industrial chemicals, and both require and promote risk reduction and responsible risk management practices through the life cycle of chemicals to facilitate and encourage the use of scientifically valid test methods and strategies that reduce or replace the use of vertebrate animals while providing information of equivalent or better scientific quality and relevance that will support regulatory decisions under TSCA. Critical to the Agency’s ability to carry out its statutory mandates is the need to create greater efficiencies in implementing TSCA amendments, and other policies, processes, and program implementation. The Senior Science Advisor provides the executive level leadership needed to ensure a sound regulatory science infrastructure of policies and approaches for the evaluation of the human health and ecological risks posed by the manufacture, processing, distribution in commerce and use of thousands of existing chemicals that are or have been part of American life for at least a century. Specific responsibilities of the position include: Providing expert technical advice and guidance to staff and senior management concerning hazard and exposure assessment, human health and ecological risk evaluation, and science policy issues involving existing chemicals under TSCA. Performing a proactive role in identifying and resolving internal science policy and risk assessment questions to facilitate development and timely completion of human health and ecological risk assessments for existing chemicals. Managing and coordinating complex high-level projects that cut across OPPT divisions and Agency lines that are of national and international importance and serve to implement TSCA. Providing leadership in integrating aggregate and cumulative risk assessment into TSCA existing chemicals decision making to ensure OPPT fulfills its obligations to reduce and replace the use of vertebrate animals in the testing of chemicals. Providing support for testimony in legal and congressional hearings, and as necessary, serving as an expert witness in litigation/hearings to support the Agency position for regulatory and enforcement actions involving existing chemicals. Conducting briefings for OCSPP and OPPT senior managers and other high level Agency officials about human health and ecological science policy issues that will be used to inform regulatory options for existing chemicals. IMPORTANT: Click the 'Apply for this job' button to view a complete job description.