Which information is NOT required on the label of a service container?

The requirement for labeling service containers is based on ensuring safety and proper identification of hazardous materials. The information that is typically required on a label includes the name of the pesticide's active ingredient, the volume of pesticide in the container, and the intended use of the pesticide.

The name of the pesticide's active ingredient helps users understand what chemical they are working with and allows for identification of potential risks and handling procedures. Indicating the volume of pesticide provides critical information for dosing and safe usage. The intended use communicates how the pesticide should be applied and for what purpose, which is essential for minimizing misuse and ensuring safety.

In contrast, while including the name of the manufacturer on a label might be helpful for some aspects of identification, it is not a mandatory requirement for service containers. The focus is more on the contents and their proper usage than on the manufacturer's identity. Therefore, the correct answer reflects what is not required by regulations pertaining to labeling service containers in California.