Hazardous waste regulations require that empty containers that contained chemicals classified by Environmental Protection Agency (EPA) as "hazardous waste" and "waste pesticides" be disposed of in a designated hazardous waste site, unless triple rinsing and other requirements are followed by commercial pesticide applicators.
Triple rinsing each emptied pesticide container, using the rinse in the tank mix whenever possible, or disposing of the residue on the farm is required. Triple-rinsed containers may be disposed of at a sanitary landfill.