Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Office of Inspector General

Enforcement (new)

The OIG Office of Investigations is the oversight component responsible for investigating allegations of fraud, waste, and abuse related to the programs and operations of the U.S. Environmental Protection Agency and the U.S. Chemical Safety and Hazard Investigation Board. The OI’s jurisdiction spans the breadth of the EPA’s and the CSB’s work, from the integrity of their programs to the expenditure of their funds. And, like those entities, the OI’s geographic area of responsibility spans the United States, including the U.S. territories, from the Northern Mariana Islands to Maine and from Puerto Rico to Alaska.

   
OIG Badge

How We Support EPA and CSB

The OI continually seeks to demonstrate return on investment while creating value for Agency leadership and fulfilling congressional expectations. The OI assists the EPA with maintaining a culture of integrity for its employees, programs, and operations.

Enforcement Priorities

The OI prioritizes criminal, civil, and administrative enforcement, focusing on specific areas in which American taxpayer funds may be at great risk or in which EPA or CSB programs may be significantly endangered. Investigations include grant, contract, laboratory, and program fraud; public corruption; and employee misconduct.

  • Grant, contract, laboratory, and program fraud
  • Public corruption
  • Employee misconduct
Descriptive image

Public-Facing Outputs

Management Implication Reports

The OI issues management implication reports, often based on investigative findings, which highlight systemic weaknesses, risks, or compliance issues within the EPA’s or the CSB’s programs and operations, and serve to keep the EPA and Congress fully and currently informed.

Fraud Alerts

The OI also issues fraud alerts to highlight specific issues, including scams or important changes to statutory and regulatory requirements for contractors or grantees.

Types of Enforcement

Criminal Enforcement

Criminal enforcement involves investigations of potential violations of federal, state, and local law that are punishable by imprisonment and fines. The OI’s criminal enforcement generally focuses on crimes violating the federal fraud, theft, and money laundering statutes.

Civil Enforcement

Civil enforcement involves investigations seeking to remedy losses resulting from false claims, fraudulent schemes, and public corruption and to compel compliance with federal laws and regulations. The OI is especially focused on violations of the False Claims Act but may also pursue recovery through the administrative process provided by the Administrative False Claims Act.

Administrative Enforcement

Administrative enforcement involves investigations of alleged violations of regulations, rules, and policies, focusing on EPA and CSB employees and operations. The OI often concludes these investigations by working with the EPA’s Suspension and Debarment Program to ensure that the Agency is taking appropriate administrative action to prevent additional fraud, waste, and abuse.

Nic Evans

Acting Assistant Inspector General of Investigations

Garrett Westfall

Acting Deputy Assistant Inspector General of Investigations (Field)

Natalie Vowell

Acting Deputy Assistant Inspector General of Investigations (HQ)

See fraud, waste, or abuse? Report it.

Office of Inspector General

  • EPA OIG Hotline
Contact the Office of Inspector General
Contact the Office of Inspector General to ask a question, provide feedback, or report a problem.
Last updated on April 1, 2026
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.