§ 161.440 - Spray drift data requirements.

(a) Table. Sections 161.100 through 161.102 describe how to use this table to determine the aerial spray drift data requirements and the substance to be tested.

Kind of data required	(b) Notes	General use patterns									Test substance		Guidelines reference No.
		Terrestrial		Aquatic		Greenhouse		Forestry	Domestic outdoor	Indoor	Data to support MP	Data to support EP
		Food crop	Nonfood	Food crop	Nonfood	Food crop	Nonfood
Droplet size spectrum	(1)	CR	CR	CR	CR			CR			TEP	TEP	201-1
Drift field evaluation	(1)	CR	CR	CR	CR			CR			TEP	TEP	202-1

Key: CR=Conditionally required; TEP=Typical end use product.

(b) Notes. The following are referenced in column two of the table contained in paragraph (a) of this section.

(1) This study is required when aerial applications (rotary and fixed winged) and mist blower or other methods of ground application are proposed and it is estimated that the detrimental effect level of those nontarget organisms expected to be present would be exceeded. The nontarget organisms include humans, domestic animals, fish and wildlife, and nontarget plants. This requirement may be satisfied by submittal of published or unpublished information regarding spray drift patterns that would be expected to be similar to the proposed product.

(2) [Reserved]

[49 FR 42881, Oct. 24, 1984. Redesignated at 53 FR 15993, May 4, 1988, as amended at 58 FR 34203, June 23, 1993]