An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

How EPA Manages the Quality of its Environmental Data

The EPA Quality Program provides requirements for conducting quality management activities for all environmental data collection and environmental technology programs performed by or for the Agency. The primary goal of the program is to ensure that the Agency’s environmental decisions are supported by data of known and documented quality.

  • The EPA Quality System provides the framework for planning, implementing, documenting, and assessing work performed by the Agency, and for carrying out required quality assurance and quality control activities.
  • Each EPA Program and Regional Office develops and implements its own individual system in support of the EPA Quality System.
  • In addition, the program covers implementation of the EPA Information Quality Guidelines.

Use the map below to find Region-specific information about EPA Information Quality Program

Map of the US, split into EPA regions Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont New Jersey, New York, Puerto Rico, US Virgin Islands Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee  Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin Arkansas, Louisiana, New Mexico, Oklahoma, Texas Iowa, Kansas, Missouri, Nebraska Colorado, Montana, North Dakota, South Dakaota, Utah, Wyoming Arizona, California, Hawaii, Nevada, Pacific Islands Alaska, Idaho, Oregon, Washington