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About EPA

About the Office of Chemical Safety and Pollution Prevention (OCSPP)

What We Do

Using sound science as a compass, OCSPP’s mission is to protect you, your family, and the environment from potential risks from pesticides and toxic chemicals. Through innovative partnerships and collaboration, we also work to prevent pollution before it begins. This reduces waste, saves energy and natural resources, and leaves our homes, schools and workplaces cleaner and safer. OCSPP implements the:

Documents Related to Our Mission


Alexandra Dapolito Dunn, Assistant Administrator
Nancy B. Beck, Principal Deputy Assistant Administrator
David Fischer, Deputy Assistant Administrator 
Lynn Dekleva, Associate Assistant Administrator for New Chemicals
Rick Keigwin, Acting Deputy Assistant Administrator for Management
Carol Ann Siciliano, Associate Assistant Administrator for Management
Tom Tyler, Chief of Staff
The Office of Chemical Safety and Pollution Prevention includes:

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Office of Pesticide Programs (OPP)

What We Do

OPP regulates the manufacture and use of all pesticides (including insecticides, herbicides, rodenticides, disinfectants, sanitizers and more) in the United States and establishes maximum levels for pesticide residues in food, thereby safeguarding the nation's food supply. EPA has expanded public access to information about risk assessment and risk management actions to help increase transparency of decision making and facilitate consultation with the public and affected stakeholders.

In addition to our regulatory functions, we provide information and coordinate with partners and stakeholders on issues ranging from worker protection to misuse of pesticides. We participate in a variety of partnerships related to pesticide use, including the Pesticide Environmental Stewardship Program, a voluntary private and public partnership dedicated to reducing pesticide use and risk, and Integrated Pest Management in Schools.

OPP implements:

Learn more about our pesticides program, including general information on pesticides, how to control pests, health and safety issues (including poison prevention), environmental effects, and pesticide regulations.

Programs and projects managed by the Office of Pesticide Programs

Mail code: 7501P | EPA mailing addresses
Location: EPA Headquarters at Potomac Yard South in Arlington, Virginia | Visiting OPP

OPP Organization

Organization Chart and Current OPP Headquarters Leadership

Office of Pollution Prevention and Toxics (OPPT)

What We Do

OPPT manages programs under the Toxic Substances Control Act and the Pollution Prevention Act. Under these laws, EPA evaluates new and existing chemicals and their risks, and finds ways to prevent or reduce pollution before it gets into the environment. We also manage a variety of environmental stewardship programs that encourage companies to reduce and prevent pollution. OPPT implements the Toxic Substances Control Act (TSCA), the Pollution Prevention Act and Section 313 of the Emergency Planning and Community Right-to-Know Act

Information on chemicals and their regulation under TSCA, ways to prevent and reduce pollution, and on safer chemicals and their use.

Programs and projects managed by the Office of Pollution Prevention and Toxics

Mail code: 7401M | EPA mailing addresses
Location: EPA Headquarters at Washington, D.C. Federal Triangle campus

OPPT Organization

Yvette T. Collazo, Director
  • Phone: (202) 564-3810
Tala Henry, Deputy Director for Programs
  • Phone: (202) 564-3810
Mark Hartman, Deputy Director for Management
  • Phone: (202) 564-3810

Chemical Control Division

  • Madison Le, Director
    • Phone: (202) 566-5754

Chemistry, Economics and Sustainable Strategies Division

  • David Widawsky, Director
    • Phone: (202) 564-8770

Environmental Assistance Division

  • Pamela Myrick, Acting Director
    • Phone: (202) 564-8170

Information Management Division

  • Pamela Myrick, Director
    • Phone: (202) 564-0970

National Program Chemicals Division

  • Brian Symmes, Acting Director
    • Phone: (202) 564-8800

Risk Assessment Division

  • Sheila Canavan, Acting Director
    • Phone: (202) 564-0930

Toxics Release Inventory Program Division

  • Larry Reisman, Director
    • Phone: (202) 566-0751

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Office of Science Coordination and Policy (OSCP)

What We Do

OSCP provides coordination, leadership, peer review, and synthesis of science and science policy within OCSPP. We aim to assure sound scientific decisions are made regarding safe pesticide and chemical management through the leadership of the Scientific Advisory Panel. We also coordinate emerging exposure and hazard assessment topics such as endocrine disruptors.

Programs and projects managed by the Office of Science Coordination and Policy

Mail code: 7201M | EPA mailing addresses
Location: EPA Headquarters at Washington, D.C. Federal Triangle campus

OSCP Organization

Hayley Hughes, DrPH, MPH, CSP, Director
  • Phone: 202-564-1116
Bruce Berkley, Deputy Director
  • Phone: 202-564-7802

The Office of Science Coordination and Policy includes:

Exposure Assessment Coordination and Policy Division (includes the Endocrine Disruptor Screening Program)

  • Sharlene Matten, Acting Director
    • Phone: 202-564-0130

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