Final answer:
The correct answer is that the registered label for a pesticide in use must be available at the job site. This allows immediate access to vital information about the pesticide and is a FIFRA and EPA requirement.
Step-by-step explanation:
The registered label for any pesticide being used or carried must be available at the job site. This requirement ensures that those on the job site, including workers and inspectors, have immediate access to important information about the pesticides being used, such as application methods, safety precautions, and the appropriate uses for the pesticide.
Compliance with this regulation is enforced through legislation such as the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), administered by the Environmental Protection Agency (EPA). Proper pesticide labeling helps to prevent misuse and protect both the environment and human health.