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Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Notices
chemical processors, distributors in commerce, and users; non-governmental organizations in the environmental and public health sectors; state and local government agencies; and members of the public. Since other entities may also be interested, the Agency has not attempted to describe all the specific entities and corresponding NAICS codes for entities that may be interested in or affected by this action.
B. What is the Agencys authority for taking this action?
The draft scope of the risk evaluation is issued pursuant to TSCA
implementing regulations at 40 CFR
702.41c7.

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C. What action is the Agency taking?
EPA is publishing and requesting public comment on the draft scope of the risk evaluation for D4 under TSCA.
Through the risk evaluation process, EPA will determine whether the chemical substance presents an unreasonable risk of injury to health or the environment under the conditions of use, as determined by the Administrator, in accordance with TSCA section 6b4.
II. Background TSCA allows chemical manufacturers to request an EPA-conducted risk evaluation of a chemical substance under 40 CFR 702.37. On March 19, 2020, EPA received a manufacturer request for a risk evaluation of D4. In the Federal Register notice of June 17, 2020 85 FR 36586; FRL1001049, EPA opened a 45-day public comment period to gather information relevant to the requested risk evaluation. EPA
granted the request on October 6, 2020, and subsequently initiated the scoping process for the risk evaluation for this chemical substance on November 5, 2020. The purpose of a risk evaluation is to determine whether a chemical substance, or group of chemical substances, presents an unreasonable risk to health or the environment, under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation 15 U.S.C. 2605b4A.
As part of this process, EPA must evaluate both hazards and exposures for the conditions of use; describe whether aggregate or sentinel exposures were considered and the basis for consideration; not consider costs or other non-risk factors; take into account where relevant, likely duration, intensity, frequency, and number of exposures; and describe the weight-ofscientific-evidence for hazards and exposures 15 U.S.C. 2605b4F. This
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process will culminate in a determination of whether or not the chemical substance presents an unreasonable risk of injury to health or the environment under the conditions of use 15 U.S.C. 2605b4A; 40 CFR
702.47.
III. Draft Scope of the Risk Evaluation for Octamethylcyclotetra-Siloxane D4
The chemical substance for which EPA is publishing the draft scope of the risk evaluation is listed on the TSCA
Inventory with CA Index Name Cyclotetrasiloxane, 2,2,4,4,6,6,8,8octamethyland the associated Chemical Abstracts Service Registry Number CASRN 556672. The draft scope of the risk evaluation for this chemical substance includes the conditions of use, hazards, exposures, and the potentially exposed or susceptible subpopulations EPA plans to consider in the risk evaluation 15
U.S.C. 2605b4D. Development of the scope is the first step of a risk evaluation. The draft scope of the risk evaluation will include the following components 40 CFR 702.41c:
The conditions of use, as determined by the Administrator, that EPA plans to consider in the risk evaluation.
The potentially exposed populations that EPA plans to evaluate;
the ecological receptors that EPA plans to evaluate; and the hazards to health and the environment that EPA plans to evaluate.
A description of the reasonably available information and the science approaches that the Agency plans to use.
A conceptual model that will describe the actual or predicted relationships between the chemical substance, the conditions of use within the scope of the evaluation and the receptors, either human or environmental, with consideration of the life cycle of the chemical substancefrom manufacturing, processing, distribution in commerce, storage, use, to release or disposaland identification of human and ecological health hazards EPA plans to evaluate for the exposure scenarios EPA plans to evaluate.
An analysis plan, which will identify the approaches and methods EPA plans to use to assess exposure, hazards, and risk, including associated uncertainty and variability, as well as a strategy for using reasonably available information and science approaches.
A plan for peer review.
EPA encourages commenters to provide information they believe might be missing or may further inform the
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risk evaluation. EPA will publish a notice in the Federal Register announcing the availability of the final scope of the risk evaluation within three months of publishing the draft scope.
Authority: 15 U.S.C. 2601 et seq.
Michael S. Regan, Administrator.
FR Doc. 202119392 Filed 9721; 8:45 am BILLING CODE 656050P

ENVIRONMENTAL PROTECTION
AGENCY
EPAHQOAR20200629; FRL896401
OMS

Information Collection Request Submitted to OMB for Review and Approval; Comment Request; NSPS
for Primary and Secondary Emissions From Basic Oxygen Furnaces Renewal Environmental Protection Agency EPA.
ACTION: Notice.
AGENCY:

The Environmental Protection Agency EPA has submitted an information collection request ICR, NSPS for Primary and Secondary Emissions from Basic Oxygen Furnaces EPA ICR Number 1069.13, OMB
Control Number 20600029, to the Office of Management and Budget OMB for review and approval in accordance with the Paperwork Reduction Act. This is a proposed extension of the ICR, which is currently approved through December 31, 2021.
Public comments were previously requested, via the Federal Register, on February 8, 2021 during a 60-day comment period. This notice allows for an additional 30 days for public comments. A fuller description of the ICR is given below, including its estimated burden and cost to the public.
An agency may neither conduct nor sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB
control number.
DATES: Additional comments may be submitted on or before October 8, 2021.
ADDRESSES: Submit your comments, referencing Docket ID Number EPA
HQOAR20200629 online using www.regulations.gov our preferred method or by mail to: EPA Docket Center, Environmental Protection Agency, Mail Code 28221T, 1200
Pennsylvania Ave. NW, Washington, DC
20460.
EPAs policy is that all comments received will be included in the public docket without change including any SUMMARY:

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