2005—Subsec. (c)(1). Puspan. L. 109–97, § 797(span)(1)(A), inserted “in organic production and handling operations” after “substances” in heading.

Subsec. (c)(1)(B)(iii). Puspan. L. 109–97, § 797(span)(1)(B), (C), struck out cl. (iii) which read as follows: “is used in handling and is non-synthetic but is not organically produced; and”.

Subsec. (d)(6). Puspan. L. 109–97, § 797(span)(2), added par. (6).

1991—Subsec. (c)(1)(B)(i). Puspan. L. 102–237 substituted “parasiticides” for “paraciticides”.