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About EPA

Current EPA Leadership

EPA Acting Administrator

Andrew Wheeler

Acting Administrator Andrew Wheeler

Chief of Operations

Henry Darwin

Chief of Operations Henry Darwin

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Assistant Administrators

Office of Air and Radiation (OAR)

Bill Wehrum

Assistant Administrator Bill Wehrum

Office of Chemical Safety and Pollution Prevention (OCSPP)

Charlotte Bertrand

Acting Principal Deputy Assistant Administrator 

Charlotte Bertrand

Nancy Beck

Deputy Assistant Administrator 

Nancy B. Beck

Office of the Chief Financial Officer (OCFO)

Portrait of CFO Holly Greaves

Chief Financial Officer Holly Greaves

Office of Enforcement and Compliance Assurance (OECA)

Office of General Counsel (OGC)

picture of Matt Leopold

General Counsel Matthew Z. Leopold

Office of the Inspector General (OIG)

Acting IG Charles J. Sheehan

Acting Inspector General Charles J. Sheehan

Office of International and Tribal Affairs (OITA)

Jane Nishida

Principal Deputy Assistant Administrator Jane Nishida

Office of Land and Emergency Management (OLEM)

Barry Breen

Acting Assistant Administrator Barry Breen

Office of Mission Support (OMS) (formerly the Offices of Administration and Resource Management (OARM) and Environmental Information (OEI))

Donna Vizian

Principal Deputy Assistant Administrator Donna Vizian

Office of Research and Development (ORD)

Jennifer Orme-Zavaleta, Ph.D

Principal Deputy Assistant Administrator for Science 
Jennifer Orme-Zavaleta, Ph.D

Office of Water (OW)

Photo of David Ross

Assistant Administrator Dave Ross

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Regional Administrators

Region 1 (Boston, MA – Serving CT, ME, MA, NH, RI, and VT)

Alex Dunn

Regional Administrator Alexandra Dapolito Dunn

Region 2 (New York, NY – Serving NJ, NY, Puerto Rico, and the U.S. Virgin Islands)

Peter Lopez

Regional Administrator Peter Lopez

Region 3 (Philadelphia, PA – Serving DE, DC, MD, PA, VA, and WV)

Cosmo Servidio

Regional Administrator Cosmo Servidio

Region 4 (Atlanta, GA – Serving AL, FL, GA, KY, MS, NC, SC, and TN)

Photo Not Available

Acting Regional Administrator Mary S. Walker

Region 5 (Chicago, IL – Serving IL, IN, MI, MN, OH and WI)

Cathy Stepp

Regional Administrator Cathy Stepp

Region 6 (Dallas, TX – Serving AR, LA, NM, OK, and TX)

Anne Idsal

Regional Administrator Anne Idsal

Region 7 (Kansas City, KS - Serving IA, KS, MO, and NE)

Jim Gulliford

Regional Administrator Jim Gulliford

Region 8 (Denver, CO – Serving CO, MT, ND, SD, UT, and WY)

Doug Benevento

Regional Administrator Doug Benevento

Region 9 (San Francisco, CA - Serving AZ, CA, HI, NV, Pacific Islands, and 148 tribes)

Portrait of Administrator Mike Stoker

Regional Administrator Mike Stoker

Region 10 (Seattle, WA – Serving AK, ID, OR, WA and 271 native tribes)

Chris Hladick

Regional Administrator Chris Hladick

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Associate Administrators

Office of Congressional and Intergovernmental Relations (OCIR)

Office of Homeland Security (OHS)

Photo Not Available

Acting Associate Administrator Ted Stanich

Office of Policy (OP)

photo of Brittany Bolen, OP AA

Associate Administrator Brittany Bolen

Office of Public Affairs (OPA)

Photo Not Available

Associate Administrator (Vacant)

Office of Public Engagement and Environmental Education (OPEEE)

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Key Staff in the Office of the Administrator

Ryan Jackson

Chief of Staff Ryan Jackson

Helena Wooden Aguilar

Acting Deputy Chief of Staff Helena Wooden-Aguilar

Photo Not Available

Acting Director of the Office of Administrative

and Executive Services Karen Maher

Ruth Etzel

Director of the Office of Children's Health Protection 

Dr. Ruth A. Etzel, M.D., Ph.D.

Vicki Simons

Director of the Office of Civil Rights

Vicki Anderson Simons

Serena McIlwain

Director of the Office of Continuous Improvement

Serena McIlwain

Photo Not Available

Director of the Office of the Executive Secretariat

Elizabeth WHite

Tom Brennan

Acting Director of the Science Advisory Board

Staff Office Tom Brennan

Denise Benjamin-Sirmons

Director of the Office of Small and Disadvantaged

Business Utilization Denise Benjamin-Sirmons

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