Which of the following describes a restricted use pesticide?

A restricted use pesticide is defined as a pesticide that has the potential to cause harm to human health or the environment when used according to label directions. These pesticides require special handling, storage, and application procedures, often necessitating that the user be certified or licensed to purchase and apply them. The rationale behind this designation is to minimize any risks associated with the pesticide's application, ensuring that only trained individuals handle these substances to mitigate potential negative impacts.

The other options do not accurately convey the characteristics of a restricted use pesticide. For instance, the idea of no restrictions on sale does not apply, as restricted use pesticides are specifically regulated to prevent misuse. The option regarding its use solely for decorative plants focuses on the type of application rather than the inherent risks involved. Lastly, the mention of regulation only on federal land misrepresents the nature of pesticide regulation, which applies both at federal and state levels, depending on the classification of the pesticide.