Active ingredient

Active ingredient means any substance (or group of structurally similar substances, if specified by the Agency) that will prevent, destroy, repel or mitigate any pest, or that functions as a plant regulator, desiccant, defoliant, or nitrogen stabilizer, within the meaning of FIFRA sec. 2.


40 CFR § 158.300

Scoping language

The following terms are defined for the purposes of this subpart:

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