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Federal Register / Vol. 86, No. 152 / Wednesday, August 11, 2021 / Rules and Regulations C. How can I file an objection or hearing request?
Under FFDCA section 408g, 21
U.S.C. 346a, any person may file an objection to any aspect of this regulation and may also request a hearing on those objections. You must file your objection or request a hearing on this regulation in accordance with the instructions provided in 40 CFR part 178. To ensure proper receipt by EPA, you must identify docket ID number EPAHQ
OPP20200113 in the subject line on the first page of your submission. All objections and requests for a hearing must be in writing and must be received by the Hearing Clerk on or before October 12, 2021. Addresses for mail and hand delivery of objections and hearing requests are provided in 40 CFR
178.25b.
In addition to filing an objection or hearing request with the Hearing Clerk as described in 40 CFR part 178, please submit a copy of the filing excluding any Confidential Business Information CBI for inclusion in the public docket.
Information not marked confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA without prior notice. Submit the non-CBI copy of your objection or hearing request, identified by docket ID number EPAHQOPP
20200113, by one of the following methods:
Federal eRulemaking Portal: http
www.regulations.gov. Follow the online instructions for submitting comments.
Do not submit electronically any information you consider to be CBI or other information whose disclosure is restricted by statute.
Mail: OPP Docket, Environmental Protection Agency Docket Center EPA/
DC, 28221T, 1200 Pennsylvania Ave.
NW, Washington, DC 204600001.
Hand Delivery: To make special arrangements for hand delivery or delivery of boxed information, please follow the instructions at https
www.epa.gov/dockets/where-sendcomments-epa-dockets. Additional instructions on commenting or visiting the docket, along with more information about dockets generally, is available at http www.epa.gov/dockets.

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II. Summary of Petitioned-For Tolerance In the Federal Register of June 24, 2020 85 FR 37806 FRL1001082
and in the Federal Register of August 5, 2020 85 FR 47330 FRL1001232, EPA issued a document pursuant to FFDCA section 408d3, 21 U.S.C.
346ad3, announcing the filing of a pesticide petition PP 0E8821 by IR4, Rutgers, the State University of New
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Jersey, 500 College Road East, Suite 201W, Princeton, NJ 08540. These petitions requested that 40 CFR 180.633
be amended by establishing tolerances with regional registrations for residues of the herbicide florasulam, N-2, 6difluorophenyl-8-fluoro-5-methoxy 1, 2, 4 triazole 1, 5-cpyrimidine-2sulfonamide, in or on grass, forage at 0.01 parts per million ppm; and grass, hay at 0.02 ppm. Those documents referenced a summary of the petition prepared by Corteva Agriscience, the registrant, which is available in the docket, https www.regulations.gov/
document/EPA-HQ-OPP-2020-01130003. There were no comments received in response to these notices of filings.
EPA is establishing a tolerance for the crop group rather than separate tolerances for forage and hay. The reason for this change is explained in Unit IV.C.
III. Aggregate Risk Assessment and Determination of Safety Section 408b2Ai of FFDCA
allows EPA to establish a tolerance the legal limit for a pesticide chemical residue in or on a food only if EPA
determines that the tolerance is safe.
Section 408b2Aii of FFDCA
defines safe to mean that there is a reasonable certainty that no harm will result from aggregate exposure to the pesticide chemical residue, including all anticipated dietary exposures and all other exposures for which there is reliable information. This includes exposure through drinking water and in residential settings but does not include occupational exposure. Section 408b2C of FFDCA requires EPA to give special consideration to exposure of infants and children to the pesticide chemical residue in establishing a tolerance and to ensure that there is a reasonable certainty that no harm will result to infants and children from aggregate exposure to the pesticide chemical residue . . . .
Consistent with FFDCA section 408b2D, and the factors specified in FFDCA section 408b2D, EPA has reviewed the available scientific data and other relevant information in support of this action. EPA has sufficient data to assess the hazards of and to make a determination on aggregate exposure for florasulam including exposure resulting from the tolerances established by this action.
EPAs assessment of exposures and risks associated with florasulam follows.
In an effort to streamline its publications in the Federal Register, EPA is not reprinting sections of the rule that would repeat what has been previously published in tolerance
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rulemakings for the same pesticide chemical. Where scientific information concerning a particular pesticide chemical remains unchanged, the content of those sections would not vary between tolerance rulemakings and republishing the same sections is unnecessary and duplicative. EPA
considers referral back to those sections as sufficient to provide an explanation of the information EPA considered in making its safety determination for the new rulemaking.
EPA has previously published a number of tolerance rulemakings for florasulam, in which EPA concluded, based on the available information, that there is a reasonable certainty that no harm would result from aggregate exposure to florasulam and established tolerances for residues of that chemical.
EPA is incorporating previously published sections from those rulemakings as described further in this rulemaking, as they remain unchanged.
Toxicological profile. The Toxicological Profile of florasulam remains unchanged from the Toxicological Profile in Unit III.A. of the July 25, 2018 rulemaking 83 FR 35141
FRL997981. Refer to that section for a discussion of the Toxicological Profile of florasulam.
Toxicological Points of Departure/
Levels of Concern. The Toxicological Points of Departure/Levels of Concern used for the safety assessment remain unchanged from Unit III.B. of the July 25, 2018 rulemaking. For a summary, refer to that discussion.
Exposure assessment. Much of the exposure assessment remains the same, although updates have occurred to accommodate exposures from the petitioned-for tolerances. These updates are discussed in this section; for a description of the rest of the EPA
approach to and assumptions for the exposure assessment, see Unit III.C. of the July 25, 2018 rulemaking.
EPAs dietary exposure assessments have been updated to include the additional exposure from the new uses of florasulam on grass seedlings, grasses grown for seed, and to add a default processing factor of 7.7x for oat bran that was previously omitted. All other assumptions in the exposure assessments for florasulam remain the same as in the July 25, 2018 rulemaking, including tolerance level residues, the other default processing factors, and 100% crop treated. Additionally, the proposed new use restricts the feeding of or grazing of livestock on grass treated with florasulam; therefore, 40
CFR 180.6a3 continues to apply.
Drinking water and non-occupational exposures. Drinking water exposures are
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