When must you comply with the bulk storage rule?

• A. To protect groundwater, DATCP enforces ATCP 33 when liquid pesticides in containers larger than 55 gallons or solid pesticides in undivided quantities greater than 100 pounds are stored. Anyone who commercially distributes or sells bulk pesticides must comply with the rule as well.
• B. When any pesticide is stored, regardless of quantity.
• C. Only when pesticides are stored outdoors.
• D. Only for imported pesticides.

Answer: (A)

The rule is about storing pesticides in bulk quantities that could threaten groundwater. DATCP enforces ATCP 33 to address this risk. You must comply when liquids are stored in containers larger than 55 gallons or when solids are stored in undivided quantities greater than 100 pounds. This requirement applies to anyone who commercially distributes or sells bulk pesticides as well.

This isn’t about any storage of pesticides at any quantity, nor is it limited to outdoor storage or to imported pesticides. The thresholds and the bulk nature of the quantities are what trigger the rule, and those applying even if the storage happens indoors or domestically.