What must individuals living or working within the specified range do to receive notifications?

The correct answer is that individuals living or working within the specified range must make a written request to receive notifications. This requirement emphasizes the need for a formal process to ensure that notifications are properly managed and recorded. By submitting a written request, individuals are able to clearly communicate their desire to receive important information, which helps regulatory authorities maintain accurate and up-to-date lists of recipients. This process protects the privacy of those individuals and ensures that notifications are directed to those who specifically requested them.

In contrast, attending annual training, providing proof of residence, or joining a local association may not be relevant actions related to receiving notifications. While these activities are important in various contexts, they do not fulfill the requirement for individuals to express their interest in receiving notifications in a formal and documented manner. Only the act of making a written request clearly establishes the basis for ongoing communication regarding pesticide use and safety information, making it the correct course of action.