What is the minimum acreage for which a fertilizer applicator certificate is required?

• A. More than 5 acres
• B. More than 50 acres
• C. Any size farm
• D. Only operations over 100 acres

Answer: (B)

The rule hinges on a specific land-area threshold: fertilizer applicator certification is required for applying fertilizer to more than 50 acres. This cutoff exists because larger acreages pose a greater potential for environmental impact, so trained applicators help ensure proper timing, placement, and rates to protect soil and water quality. So if your operation involves more than 50 acres, you need certified credentials; if you’re working on 50 acres or fewer, the certification requirement doesn’t apply under that rule. The other options aren’t correct because they set the threshold at smaller or larger numbers than the actual rule.