Ind. Code § 15-16-4-7

Sec. 7. As used in this chapter, "bulk pesticide" means any pesticide or mixture of pesticides that is transported or held in a reusable immediate container in undivided quantities greater than:

(1) one hundred (100) pounds net dry weight; or

(2) fifty-five (55) U.S. gallons liquid measure.

The term does not include a pesticide that is in the custody of the ultimate user and has been prepared for application by the ultimate user by diluting the pesticide according to the label directions for that pesticide.