Dr. Stephanie Guerra is a biologist and science policy professional currently serving as the Assistant Director for Health Security and Biodefense at the White House Office of Science and Technology Policy where she works on advancing pandemic preparedness innovation. She previously served as an American Association for the Advancement of Science (AAAS) Science and Technology Policy Fellow at the Department of Veterans Affairs and a Mirzayan Science Policy Fellow at the National Academies of Science. In these roles, Dr. Guerra has worked on policy development and program implementation for key policy priorities including opioids safety; precision oncology; diversity, equity, and inclusion; biodefense; and pandemic preparedness. Dr. Guerra also formerly worked as a Ending Bioweapons Fellow with the Council on Strategic Risks where she researched and developed policy and programmatic solutions for reducing biological risks. She received her Ph.D. in Biological and Biomedical Sciences from Harvard University and her B.S. in Biological Sciences and B.A. in Hispanic Studies from Carnegie Mellon University.

Dr. Stephanie Hooker is the Acting Director of Material Measurement Laboratory at the National Institute of Standards and Technology. Dr. Hooker is a materials engineer whose diverse interests have kept her enthusiastic about science for 20+ years. From smart systems to nanotechnology, she is fascinated by how the right material can make virtually anything possible. Stephanie has built space experiments to qualify new materials, helped grow a high-tech startup, and, for the last decade, managed and promoted research in applied materials and chemistry at NIST. As manager, Stephanie aims to help her team of scientists pursue their passions and achieve great impact for the nation.

Gabe Arnold is a Senior Lighting Engineer with Pacific Northwest National Laboratory. He is a principal investigator on the advanced lighting team supporting the U.S. Department of Energy's Lighting R&D and Commercial Buildings Integration programs, focusing on development and deployment of emerging lighting and building technologies. His current work focuses on germicidal ultraviolet technologies and DOE’s L-Prize competition.

CAPT Stephen B. Martin, Jr. (Steve) is a Senior Research Engineer Officer in the Commissioned Corps of the United States Public Health Service assigned to the Field Studies Branch of the Respiratory Health Division at the National Institute for Occupational Safety and Health (NIOSH) in Morgantown, West Virginia. Since joining NIOSH in 1997, he has been involved with research into respirator filter and unit performance, ventilation systems and other engineering controls, environmental tractor cab filter performance and cab integrity testing, indoor air quality investigations, and air/surface disinfection studies using ultraviolet germicidal irradiation (UVGI). He works extensively on tuberculosis (TB) outbreak investigations and prevention studies in jails, prisons, and homeless shelters. Steve is one of two NIOSH engineers responsible for the bulk of the CDC ventilation guidance during the COVID-19 pandemic. Additionally, he was involved with the NIOSH response to the 2001 anthrax attacks, the Severe Acute Respiratory Syndrome (SARS) outbreaks in Asia, Hurricanes Katrina and Rita, the BP oil spill in the Gulf of Mexico, and preparing US hospitals to receive Ebola patients during the recent outbreaks in western Africa. Steve is a Registered Professional Engineer in the State of West Virginia. Steve is a founding member and past-chairperson of the ASHRAE Technical Committee on Ultraviolet Air and Surface Disinfection (TC 2.9) and a voting member of the ASHRAE Standards Project Committee (SPC 185) that developed standard testing methods for in-duct UVGI air and surface disinfection devices. He also serves as a NIOSH representative on the Federal TB Task Force and as the NIOSH ex officio member of the CDC Advisory Council for the Elimination of Tuberculosis.

Matthew Meyer is a mechanical engineer with OSHA’s Health Response Team which assists OSHA area offices in various cases. Matt specializes in ventilation and indoor air quality issues. He is a professional engineer in several states and holds a PhD in engineering education. Having worked as a professional keeper during college, Matt has made peace with bees and never gets stung.

Chris Dugard began his career with FDA in 2013 when he participated in an ORISE fellowship at FDA’s National Center for Toxicological Research focusing on analytical chemistry techniques around silver nanoparticles. He has been with FDA/CDRH since 2014 where he started as a reviewer with what was then the Division of Surgical Devices. He joined the Infection Control Devices Team - which eventually split into the Sterility Devices Team and PPE/Disinfection team in the Office of Surgical and Infection Control Devices – in 2016 where he focused on sterilizers and their associated accessories. In 2021, he accepted a position as the Team Lead for the Sterility Devices Team.

Warren Merkel serves as Leader of the Standards Services Group in the Standards Coordination Office of the National Institute of Standards and Technology (NIST), Gaithersburg, MD, USA. Programs under his responsibility include engagement with government agencies on standards and conformity assessment issues, and operation of the World Trade Organization Technical Barriers to Trade Inquiry Point for the United States. Mr. Merkel also served as co-convener of ISO/CASCO Working Group 44 on the revision of ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories. Prior to his current position, Mr. Merkel was Chief of the National Voluntary Laboratory Accreditation Program (NVLAP) at NIST from 2003 to 2006. After leaving NIST for six years to teach chemistry, he returned to serve as Chief of NVLAP from 2012 to 2015. From 1996 to 2003, Mr. Merkel was employed by the American Association for Laboratory Accreditation (A2LA), most recently as Technical Manager. From 1992 to 1996, he worked as an Investigative Chemist in the Defense Logistics Agency Analytical Product Testing Center in Philadelphia, PA. Mr. Merkel holds a B.S. in Chemistry from Temple University and a M.Ed. in Curriculum and Instruction from Bloomsburg University.