Pesticide application equipment calibration is required by law.

• A. False
• B. Not required in all jurisdictions
• C. True
• D. It is optional

Answer: (C)

Calibration of pesticide application equipment is required by law because the label specifies the exact rate at which a product must be applied, and you must be able to deliver that rate in the field. Calibration is the process of measuring and adjusting spray output, travel speed, and swath width so the amount applied per area matches the label’s directions. When you apply a product at the labeled rate, you’re meeting legal requirements designed to protect crops, workers, and the environment. If you don’t calibrate, you can easily apply too much or too little, which can lead to regulatory penalties, crop injury, and environmental harm. So calibration isn’t optional; it’s a legal necessity to ensure proper, compliant application.