The director may, after notice and hearing, establish regions for the notification of apiary owners relative to pesticide applications if the director determines that the notification could be effectively accomplished on a regional basis and that there would be sufficient interest among beekeepers and pest control operators to make substantial participation in a regional notification system likely. The regions may be composed of more than one county or portions of counties, but no single county or portion of a county may become an entire region.
Ca. Food and Agric. Code § 29080.5