Robert　 A.　 Woellner,　 M.S.,　 is　 the　 President　 of　 QUEST　 Environmental　 and　 QUEST　 Management　 International.　 Bob　 has　 more　 than　 25　 years　 of　 environmental　 risk　 assessment,　 industrial　 hygiene,　 indoor　 air　 quality,　 scientific　 investigative,　 and　 environmental　 management　 systems　 consulting　 experience. He serves on several boards, teaches college classes, and has published many articles and contributed to several books regarding environmental risk management. He has qualified and served in numerous jurisdictions as an expert　 in　 industrial　 hygiene,　 environmental　 monitoring,　 microflora/mold,　 meth,　 indoor　 air　 quality,　 environmental　 sampling,　 and　 risk　 management,　 for　 dozens　 of　 environmental　 contamination　 cases.　 He　 holds　 a　 Bachelor’s　 degree in Geology from Middlebury College and a Master of Science degree in Marine Geology and Geophysics from the Rosenstiel School of Marine & Atmospheric Science.John　 Voorhees, 　 J.D.,　 a　 Shareholder　 at　 Greenberg　 Traurig,　 LLC,　 has　 practiced law for over 40 years and is a member of the American, Colorado, and Denver Bar Associations. He focuses his practice on compliance counseling, particularly on environmental, health care, fraud, and white collar matters. He　 has　 defended　 Superfund　 and　 Clean　 Water　 Act　 cases　 and　 a　 wide　 variety　 of　 other　 civil　 and　 criminal　 cases.　 He　 has　 represented　 hospitals　 and　 a　 disease　 management　 company　 in　 disputes　 with　 the　 Centers　 for　 Medicare　 and　 Medicaid　 Services　 (CMS)　 and　 is　 experienced　 at　 litigating　 hospitals’　 Medicare reimbursement claims against CMS, as well as fraud, waste, and abuse　 claims.　 He　 spent　 11　 years　 as　 a　 federal　 prosecutor　 in　 the　 Organized　 Crime & Racketeering Section of the U.S. Department of Justice before entering private practice in 1988. John received his law degree from the Columbus School of Law, Catholic University of America. He has represented QUEST since 1995.Christopher　 L.　 Bell,　 J.D.,　 is　 a　 partner　 in　 the　 international　 law　 firm　 of　 Greenberg Traurig LLP. He counsels clients and defends in civil and criminal enforcement cases on a wide range of issues, including compliance with water,　 waste,　 air,　 chemical,　 transportation,　 pollution　 prevention,　 cleanup,　 product stewardship, and safety requirements as well as international issues such　 as　 the　 EU’s　 ROHS　 Directive　 and　 REACH　 Regulation,　 and　 issues　 such　 as　 climate　 change,　 sustainable　 development,　 nanotechnology,　 and　 social　 responsibility. He participates in legislative and regulatory advocacy involving　 most　 of　 the　 major　 environmental　 laws.　 He　 has　 extensive　 experience　 designing,　 implementing,　 and　 auditing　 environmental　 management　 and　 compliance　 assurance　 systems,　 including　 systems　 based　 on　 ISO　 14001,　 RC　 14001, and the Sentencing Guidelines. He was a lead U.S. international negotiator on ISO 14001 for a decade and also served as a negotiator in the development of the ISO 37001:2016 standard on antibribery management systems. He　 is　 currently　 serving　 as　 an　 independent　 monitor　 overseeing　 compliance　 with complex federal debarment and probation agreements arising from the resolution of a major criminal environmental case.