Which agencies are responsible for registering pesticides?

The correct choice highlights the primary agencies involved in the registration of pesticides within the United States. The U.S. Environmental Protection Agency (EPA) is responsible for the federal oversight of pesticide registration, ensuring that all pesticides meet established safety and efficacy standards before they can be marketed. This includes reviewing scientific data regarding the product's potential risks to human health and the environment.

In addition, the Texas Department of Agriculture plays a critical role on the state level in administering the pesticide registration process. They work in conjunction with the EPA, implementing state-specific regulations and standards that may be more stringent than federal guidelines. This dual-layered approach ensures that pesticides are not only safe for use but also effective for their intended purposes within Texas.

Understanding the responsibilities of these two agencies is crucial for private applicators who need to comply with both state and federal regulations when acquiring and using pesticides in their agricultural practices. The other options mention agencies that are either not primarily involved with pesticide registration or have different focus areas related to environmental protection or agriculture.