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National Enforcement Investigations Center (NEIC)

hands adjusting protective face shield
A worker is assisted during a HazMat training exercise at NEIC.

The National Enforcement Investigation Center (NEIC) is the environmental forensics center for EPA’s enforcement programs.  NEIC has a unique role in supporting complex criminal and civil enforcement investigations and conducting applied research and development to maintain sufficient scientific tools and applications for enforcement programs.  Often, the demands of some of the most complex environmental investigations require the use of non-standard methodologies.  Innovative investigative strategies can include complex process-based investigations, development of new analytical and field methods, evaluations and modification of existing methods, and expert technical consultation and advice.

NEIC's Mission

NEIC's mission is to protect human health and the environment by serving as EPA’s fully accredited ISO 17025 forensics laboratory and providing multi-disciplinary expert teams to conduct field investigations to gather and evaluate evidence and perform analytical services. NEIC supports criminal and civil enforcement partners by gathering data, providing engineering evaluations, analyzing forensic evidence, providing legally defensible data, serving as expert witnesses in the courtroom, and delivering investigative training.

NEIC YouTube VideoFor more information on how NEIC plays a critical support role for criminal and civil investigations, please watch the video EPA's National Enforcement Investigations Center:  The Science Behind Environmental Enforcement 


NEIC is an accredited environmental forensics center. NEIC’s operations conform to ISO/IEC 17025 and supplemental forensic testing requirements. ANSI-ASQ National Accreditation Board (ANAB) is the accreditation body, and the accreditation scope includes both field activities and chemistry.

NEIC also maintains ISO/IEC 17025 accreditation for specific methods in bulk asbestos fiber analysis. This accreditation is granted by the National Voluntary Laboratory Accreditation Program, operated by the National Institute of Standards and Technology.

Accreditation confirms that NEIC implements a recognized and systematic approach to planning, conducting, documenting, and assessing forensic and environmental data collection activities. Accreditation demonstrates to environmental stakeholders and to the American public NEIC’s ongoing commitment to sound science. The scope of accreditation includes:

Field Activities

  • General Field Procedures
  • Sampling of Gases, Liquids, and Solids/Wastes/Products


  • General Chemistry – Microscopy/Chromatography
  • Molecular Analysis – Chromatography and Molecular Spectroscopy/Spectrometry
  • Elemental Analysis – Elemental Spectroscopy/Spectroscopy

Forensics Laboratory

scientist looking into microscope
Inside the microscopy laboratory at NEIC.

Chemical analysis is preferred as part of many enforcement actions to ascertain the chemical composition, amount and extent of contamination. For more information on NEIC’s state-of-the-art Forensics Laboratory, see the NEIC Forensic Laboratory Fact Sheet (PDF file)

Specialized Expertise

NEIC maintains specialized expertise in the fields of chemistry, toxicology, and statistics.  For more information on NEIC’s specialized expertise and how it can help support future cases, see the NEIC Expert Support Fact Sheet (PDF file).

Field Services

By gathering information from a specific site for use in environmental investigations and enforcement activities, NEIC provides evidence to determine non-compliance.  For more information, see the NEIC Field Services Fact Sheet (PDF file).

Advanced Monitoring

By gathering information from a specific site for use in environmental investigations and enforcement activities, NEIC provides evidence to determine non-compliance.  For more information, see the NEIC Advanced Monitoring Fact Sheets (PDF files). For additional information regarding any of NEIC’s offerings, please do not hesitate to contact NEIC directly by email at:

Menu of Services

NEIC provides a variety of field, analytical and specialized services.  To review our full menu of services, please see the NEIC Menu of Services (PDF file).


NEIC customers include various groups to provide objective, legally defensible data and expert scientific and technical advice.