EPA does not have a certification program for mold inspectors or mold remediation firms. EPA does not maintain a list of mold inspectors or mold remediation firms, though some states might.

Some states and organizations may require certification, trainings, or examinations for practitioners in the indoor air quality industry. Sometimes companies that provide radon, lead or asbestos inspection services provide mold assessment services as another part of their business. Ask about qualifications, training and experience and check references for professionals you are considering. See our list of state contacts at www.epa.gov/indoor-air-quality-iaq/epa-regional-office-and-state-indoor-air-quality-information.

The key to mold growth is moisture so part of assessing mold problems is looking for existing or potential moisture problems. Companies that provide water damage inspection services may help look for moisture and some may be familiar with mold problems as well.

There are no established safe levels or regulatory standards for mold, so, although testing can be done, it may be of limited use in helping to understand the problem. Mold assessment is mainly done through visual inspection of areas where there have been moisture problems or water damage

The basics of mold, moisture control and cleanup are in the EPA publication "A Brief Guide to Mold and Moisture in Your Home" which is available on the EPA website at www.epa.gov/mold/index.html.

For more information on the basics of mold, moisture control and cleanup, see:

• A Brief Guide to Mold, Moisture, and Your Home - www.epa.gov/mold/brief-guide-mold-moisture-and-your-home [EPA 402-K-02-003]
  • Una Breve Guía para el Moho, la Humedad y su Hogar está disponible en el formato PDF - https://19january2021snapshot.epa.gov/cai/una-breve-guia-para-el-moho-la-humedad-y-su-hogar.  Documento de la agencia EPA número 402-K-03-008.

Visit our website at www.epa.gov/mold.