EPA Deputy Administrator David Fotouhi was joined by U.S. Representative Jen Kiggans (R-VA-02) and others to announce more than $90 million for the Chesapeake Bay watershed.

Today, U.S. Environmental Protection Agency (EPA) announced a $272 million Water Infrastructure Finance and Innovation Act (WIFIA) loan to the city of Columbia, Tennessee, known as “Muletown,” with a ...

Do you have questions about a Test Method, Performance Specification or Source Category? Find the EMC contact for your question in the EMC Directory.

EPA and HHS today announced a new interagency Memorandum of Understanding (MOU) to strengthen scientific coordination and expand the evidence available to EPA’s ongoing registration review of ...

Overview of regulatory requirements under Section 608 of the Clean Air Act for stationary refrigeration and air conditioning.

Dissolved oxygen (DO) is the amount of oxygen that is present in water. Water bodies receive oxygen from the atmosphere and from aquatic plants. Running water, such as that of a swift moving stream, ...

EPA and DOJ announced a proposed settlement agreement with commercial sterilization facility operator Steri-Tech, Inc. to reduce ethylene oxide (EtO) emissions at its facility Salinas, Puerto Rico, by ...

Today, U.S. Environmental Protection Agency notified all 50 states, the District of Columbia, five territories, and 67 Tribes of the agency’s intended approach for area designations under the ...

On Friday, September 25, 2026, nearly two years following the devastating effects of Hurricane Helene, EPA Deputy ...

On February 12, 2026, U.S. Environmental Protection Agency finalized its rescission of the 2009 Greenhouse Gas Endangerment Finding, which served as a prerequisite for regulating emissions from new ...

Learn how to keep pests under control at home, whether you live in a free-standing, single-family house, or in an apartment, condominium, or elsewhere. The best way to prevent or stop pest ...

Manual for the Certification of Laboratories Analyzing Drinking Water, Fifth Edition (pdf) (4 MB) Supplement 1 to the Fifth Edition of the Manual for the Certification of Laboratories Analyzing ...