§ 158.540 - Plant protection data requirements.

(a) Table. Sections 158.50 and 158.100 through 158.102 describe how to use this table to determine the plant protection data requirements and the substance to be tested.

Kind of data required(b) NotesGeneral use patternsTerrestrialFood cropNonfoodAquaticFood cropNonfoodGreenhouseFood cropNonfoodForestryDomestic outdoorIndoorTest substanceData to support MPData to support EPGuidelines reference No.Target area phytotoxicity(1)EPEP121-1Nontarget area phytotoxicityTier I:Seed germination/seedling emergence(2)RRRTGAITGAI122-1Vegetative vigor(2)RRRTGAITGAI122-1Aquatic plant growth(2)RRRTGAITGAI122-2Tier II:Seed germination/seedling emergence(3)CRCRCRTGAITGAI123-1Vegetative vigor(3)CRCRCRTGAITGAI123-1Aquatic plant growth(4)CRCRCRTGAITGAI123-2Tier III:Terrestrial field(3)CRCRCRTEPTEP124-1Aquatic field(4)CRCRCRTEPTEP124-2Key: CR=Conditionally required; TGAI=Technical grade of the active ingredient; EP=End-use product; TEP=Typical end-use product.(b) Notes. The following notes are referenced in column two of the table contained in paragraph (a) of this section.(1) Data are required for Special Review and certain public health situations.(2) Data are required for pesticides to be used in forests and natural grasslands. For herbicide used in forest site preparation; the acquatic plant growth tests will be required. Data are required to support products to be used in other locations when any of the following conditions are met:(i) Phytotoxicity problems concerning the product arise and open literature data are not available to address the problems.(ii) The product may pose hazards to endangered or threatened species.(iii) Special Review has been initiated on the product.(3) Required if a 25 percent or greater detrimental effect was found in 1 or more plant species in the corresponding test of the previous tier.(4) Required if a 50 percent or greater detrimental effect was found on any plant species in the corresponding test of the previous tier.