A FDA is U.S. Food and Drug Administration, which is involved in regulation of pesticides in the U.S., particularly enforcement of tolerances in food and feed products.

The FDA, or the U.S. Food and Drug Administration, is a regulatory agency responsible for protecting public health by ensuring the safety and efficacy of food, drugs, medical devices, and other products. While the FDA's primary focus is on public health, its actions can have significant environmental impacts, particularly in relation to the regulation of chemicals and waste products.

Some examples of the FDA's role in environmental protection include:

• Regulation of pharmaceuticals: The FDA is responsible for ensuring that pharmaceuticals are safe and effective, both for human use and for the environment. This includes evaluating the potential environmental impacts of pharmaceuticals, such as their effects on aquatic ecosystems and the development of antibiotic-resistant bacteria.

• Regulation of food additives: The FDA regulates the use of food additives, such as preservatives, colorings, and flavorings, to ensure that they are safe for human consumption and do not have negative environmental impacts.

• Regulation of medical devices: The FDA regulates the design and manufacturing of medical devices, such as syringes and catheters, to ensure their safety and efficacy, and to minimize the potential environmental impacts of their use and disposal.

Similar regulatory agencies exist in other countries, such as the European Medicines Agency (EMA) and Health Canada's Health Products and Food Branch (HPFB), which also play a role in environmental protection through their regulation of pharmaceuticals and other products.

In addition to regulatory agencies, there are also environmental protection agencies, such as the U.S. Environmental Protection Agency (EPA), which are responsible for protecting the environment through the regulation of pollutants, hazardous waste, and other environmental hazards.