Mixing pesticides is allowed only when the label or the manufacturer explicitly permits the tank mix. The label is the binding instruction for use, including whether combinations are allowed and how to mix them. If the label does not specify that two products can be mixed, you should not mix them because unlisted combinations can cause chemical incompatibilities, reduce efficacy, injure crops, or create safety hazards for workers. When you need a tank mix, look for explicit compatibility statements on the label or in the manufacturer’s published guidelines, and if there’s any doubt, do not mix until you have clear authorization or instructions.

Controlling exposure during mixing and loading centers on reducing contact with pesticides through engineering controls, proper PPE, restricted access, and good hygiene. Using an enclosed or well-ventilated mixing area limits vapor and aerosol buildup around workers. Wearing the appropriate PPE—such as gloves, eye protection, and any respirator required by the product label—provides a personal barrier against skin contact and inhalation. Keeping non-essential personnel away minimizes the number of people exposed and reduces the chance of accidental exposure. Good hygiene and decontamination, including washing exposed skin, changing or cleaning contaminated clothing, and cleaning tools and surfaces, prevents residues from spreading and being carried home. Together, these practices address multiple routes of exposure and align with label requirements. Options that allow unrestricted access, sharing PPE without cleaning, or mixing in unventilated spaces fail to reduce exposure and are unsafe.

Moving restricted pesticides across state lines requires documentation that proves proper identification, labeling, and regulatory compliance for transport. You must have transport records that log what is being moved, from where to where, and when, so the shipment can be tracked and verified. Each container must carry the current label and reflect the product’s identity and restrictions, ensuring label information matches what is being transported. Because many pesticides are hazardous materials, you must follow the Department of Transportation rules for packing, marking, labeling, and shipping papers, including having the appropriate hazmat shipping papers and emergency information available. In addition, you should be prepared with product knowledge—understanding the pesticide’s hazards, uses, and EPA registration—and a manifest or other required documentation that lists the contents and quantities. This combination ensures the shipment is compliant, traceable, and safe to transport.

Pesticide rinse water can still contain active ingredients and residues, so it must be handled carefully to protect people and the environment. The proper approach is to collect the rinse water and either treat it or dispose of it at an approved facility, following the label directions. Do not discharge rinse water to storm drains or waterways unless the label and regulatory authority specifically permit it. Evaporation in open air can release residues as aerosols; reusing rinse water directly without treatment risks spreading contaminants; dumping into an irrigation ditch can contaminate irrigation water and crops and is often illegal. Following the label and using an approved disposal option keeps workers safe and protects water quality.