Inert ingredient,

Inert ingredient, means any substance, such as a selectable marker, other than the active ingredient, where the substance is used to confirm or ensure the presence of the active ingredient, and includes the genetic material necessary for the production of the substance, provided that genetic material is intentionally introduced into a living plant in addition to the active ingredient.

Source

40 CFR § 174.3

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Scoping language

Terms used in this part have the same meaning as in FIFRA. In addition, the following terms have the meaning set forth in this section.

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