The Commissioner may classify a pesticide restricted when:

1. (a) the pesticide is intended or labelled for professional use
2. (b) the pesticide is intended or labelled exclusively for aquatic use

3. (c) a pesticide used indoors meets one or more of the following criteria:

   1. (1)Oral LD₅₀≤500 mg/kg (product as sold except "Ready-to-Use")≤2000 mg/kg (use dilution or "Ready-to-Use")or(2)Dermal LD₅₀≤ ≤2000 mg/kg (product as sold except "Ready-to-Use")≤5000 mg/kg (use dilution or "Ready-to-Use)or(3)Dust of mist acute inhalation LC₅₀ (1 hr. exposure; 14 days observation) ≤20 mg/1or(4)Gas or vapor inhalation LC₅₀ (1 hr. exposure; 14 days observation) ≤2000 ppm

4. (d) a pesticide used outdoors or in agriculture meets one or more of the following criteria:

   1. (1)Oral LD₅₀≤50 mg/kg (products as sold except “Ready-to-Use”)≤200 mg/kg (use dilution or “Ready-to-Use”)or(2)Dermal LD₅₀≤ ≤500 mg/kg (product as sold except “Ready-to-Use”)≤1000 mg/kg (use dilution or “Ready-to-Use”)or(3) Build up of residues of ingredients or break-down products in mammalian or avian food in amounts ≤ 1/5 LD₅₀ following application.

(Effective February 14, 1975)