§ 152.164 Classification procedures.
(a) Grouping of products for classification purposes. In its discretion, the Agency may identify a group of products having common characteristics or uses and may classify for restricted use same or all of the products or uses included in that group. Such a group may be comprised of, but is not limited to, products that:
(1) Contain the same active ingredients.
(2) Contain the same active ingredients in a particular concentration range, formulation type, or combination of concentration range and formulation type.
(3) Have uses in common.
(4) Have other characteristics, such as toxicity, flammability, or physical properties, in common.
(b) Classification reviews. The Agency may conduct classification reviews and classify products at any time, if it determines that a restriction on the use of a pesticide product is necessary to avoid unreasonable adverse effects on the environment. However, classification reviews normally will be conducted and products classified only in the following circumstances: