Which of the following is considered a supplemental label?

A supplemental label is an additional document that provides specific instructions or information about the use of a pesticide, which is not found on the primary label. This information is often crucial for ensuring that the pesticide is used safely and effectively, and it must be consistent with the primary label.

The option that represents a supplemental label effectively is a pamphlet containing use directions and restrictions that is attached to the container. This pamphlet serves to inform users about specific usage guidelines or limitations that might not be fully covered on the main pesticide label, allowing for safer application and better adherence to legal and safety standards.

In contrast, sales literature and samples of pesticide labels do not provide the necessary detailed instructions or usages, making them unsuitable for the role of a supplemental label. Similarly, literature on application equipment might be useful but focuses on equipment rather than pesticide application specifics, thus lacking the critical connection to pesticide use that a supplemental label should have.