Precursor.

Precursor. Means any chemical reactant which takes part, at any stage in the production, by whatever method, of a toxic chemical. The term includes any key component of a binary or multicomponent chemical system.

Source

15 CFR § 710.1

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Scoping language

The following are definitions of terms used in the CWCR (parts 710 through 729 of this subchapter, unless otherwise noted):

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