Generally any substance or mixture of substances claiming to prevent, destroy, repel, or mitigate a pest. Legal sales of pesticides can only be made following proper registration.

Federal: The U.S. Environmental Protection Agency (EPA) oversees all pesticide registrations. Synthetic pesticides are managed by the Registration Division, while biopesticides fall under the Biopesticide and Pollution Prevention Division.

State: Individual state regulatory agencies, such as the Department of Pesticide Regulation in California or the State Chemist in Indiana, enforce local pesticide regulations.

EPA-Registered: These pesticides are reviewed and approved by the U.S. EPA to ensure they meet federal safety and efficacy standards. The registration process, regulated under Section 3 of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), requires manufacturers to submit scientific data on toxicity and environmental impact.

FIFRA-Exempt: Some pesticides are exempt from EPA registration under FIFRA Section 25(b) if they contain active and inert ingredients considered safe. These "minimum risk pesticides" do not require extensive testing but must comply with state regulations. They are typically made from natural or low-risk substances, such as essential oils, and do not carry an EPA registration number.

Active ingredient list is found here: View list

Inert ingredient list is found here: View list

All insect repellents are considered pesticides by the EPA.