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Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and Other Technical Amendments: Notice of proposed rulemaking - This notice of proposed rulemaking includes corrections, clarifications, additional flexibilities, and adjustment factors to improve the Greenhouse gas Emissions Model (GEM) compliance tool for heavy-duty vehicles while more closely matching the outputs produced by the original GEM version 3.0 that was used to establish the CO2 standards for Model Years 2021 and later in the 2016 Heavy-duty Phase 2 final rule. This document supplements the proposed rule published on May 12, 2020, which included a larger set of proposed revisions to modify and improve GEM. Most of the proposed revisions from that notice of proposed rulemaking are addressed in a final rulemaking published elsewhere in the Final Rules section of this issue of the Federal Register. Given the nature of this proposal, there will be neither significant environmental impacts nor significant economic impacts for any sector. If requested on or before 6 July 2021, the EPA will host an online public hearing at 10 a.m. Eastern Standard Time on 14 July 2021.

Energy Conservation Program: Definition of Showerhead: Notice of proposed rulemaking and announcement of public meeting

In this notice of proposed rulemaking ("NOPR"), the U.S. Department of Energy ("DOE") proposes to revise the current definition of "showerhead" adopted in the 16 December 2020 final rule ("December 2020 Final Rule") by reinstating the prior definition of "showerhead." This reinstatement of the prior definition is consistent with the purposes of the Energy Policy and Conservation Act ("EPCA") . Further, DOE has tentatively determined that, in reinstating the prior definition of "showerhead," all showerheads within a product containing multiple showerheads will be considered part of a single showerhead for determining compliance with the 2.5 gallons per minute ("gpm") standard. (...)

Hazardous Materials: Editorial Corrections and Clarifications: Final rule - This final rule corrects editorial errors and improves the clarity of certain provisions in the Hazardous Materials Regulations and PHMSA program and procedural regulations. The intended effect of this rulemaking is to enhance the accuracy and reduce misunderstandings of the regulations. The amendments contained in this final rule are non-substantive changes and do not impose new requirements.

Asbestos (Part 1: Chrysotile Asbestos); Final Toxic Substances Control Act (TSCA) Risk Evaluation; Notice of Availability: Notice - The Environmental Protection Agency (EPA) is announcing the availability of the final Toxic Substances Control Act (TSCA) risk evaluation of Asbestos Part 1 (Chrysotile Asbestos) . The purpose of conducting risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation, without consideration of costs or other nonrisk factors. EPA has determined that specific conditions of use of Chrysotile Asbestos present an unreasonable risk of injury to health. For those conditions of use for which EPA has found an unreasonable risk, EPA must take regulatory action to address that unreasonable risk through risk management measures enumerated in TSCA. EPA has also determined that specific conditions of use do not present unreasonable risk of injury to health or the environment. For those conditions of use for which EPA has found no unreasonable risk to health or the environment, the Agency's determination is a final Agency action and is issued via order in the risk evaluation. EPA is currently developing Part 2 of the TSCA risk evaluation for Asbestos which will evaluate risk of injury to health or the environment for legacy uses and associated disposals of asbestos. The Agency plans to release a draft scope for Part 2 of the risk evaluation for Asbestos for public comment mid-year 2021.

n-Methylpyrrolidone (NMP); Final Toxic Substances Control Act (TSCA) Risk Evaluation; Notice of Availability: Notice - The Environmental Protection Agency (EPA) is announcing the availability of the final Toxic Substances Control Act (TSCA) risk evaluation of n-Methylpyrrolidone (NMP) . The purpose of conducting risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation, without consideration of costs or other nonrisk factors. EPA has determined that specific conditions of use of NMP present an unreasonable risk of injury to health. For those conditions of use for which EPA has found an unreasonable risk, EPA must take regulatory action to address that unreasonable risk through risk management measures enumerated in TSCA. EPA has also determined that specific conditions of use do not present unreasonable risk of injury to health or the environment. For those conditions of use for which EPA has found no unreasonable risk to health or the environment, the Agency's determination is a final Agency action and is issued via order in the risk evaluation.

Oil and Gas and Sulfur Operations in the Outer Continental Shelf--Reaffirmation of Standard Editions Related to the Manual of Petroleum Measurement Standards: Direct final rule; request for comments - This direct final rule incorporates by reference American Petroleum Institute's (API's) reaffirmation of 21 production measurement publications (each referred to herein as a "standard") . This direct final rule updates the reaffirmation date of industry standards already incorporated in regulations administered by the Bureau of Safety and Environmental Enforcement (BSEE) . This rule does not include any new editions of incorporated standards, nor does it incorporate any new standards. Rather, it merely acknowledges API's subsequent reaffirmation, without change, of standards previously incorporated by reference. (...)

Extension of 2019 and 2020 Renewable Fuel Standard Compliance and Attest Engagement Reporting Deadlines: Proposed rule - The Environmental Protection Agency (EPA) is proposing to modify certain compliance dates under the Renewable Fuel Standard (RFS) . First, EPA proposes to extend the RFS compliance deadline for the 2019 compliance year and the associated deadline for submission of attest engagement reports for the 2019 compliance year for small refineries. The new deadlines would be 30 November 2021, and 1 June 2022, respectively. Second, EPA proposes to extend the RFS compliance deadline for the 2020 compliance year and the associated deadline for submission of attest engagement reports for the 2020 compliance year for obligated parties and RIN-generating renewable fuel producers and importers, and other parties holding RINs. The new deadlines would be 31 January 2022, and 1 June 2022, respectively.

Renewable Fuel Standard (RFS) Program: Extension of Compliance and Attest Engagement Reporting Deadlines: Proposed rule - The Environmental Protection Agency (EPA) is proposing to modify certain compliance dates under the Renewable Fuel Standard (RFS) program. First, EPA is proposing to extend the RFS compliance reporting deadline and the associated attest engagement reporting deadline for the 2019 compliance year for small refineries only. Second, EPA is proposing to extend the RFS compliance reporting deadline and the associated attest engagement reporting deadline for the 2020 and 2021 compliance years for all obligated parties. Finally, EPA is proposing to change the way in which future RFS compliance and attest engagement reporting deadlines are determined.

Clean Cars: Proposed rule - Proposes rule that reduces greenhouse gas (GHG) and other air pollutant emissions from light-duty and medium-duty vehicles by adopting the Low-Emission Vehicles (LEV) and Zero-Emission Vehicles (ZEV) standards adopted by the California Air Resources Board, as allowed under section 177 of the Clean Air Act (CAA) .

Approval of American Society of Mechanical Engineers' Code Cases: Proposed rule - The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to incorporate by reference proposed revisions of three regulatory guides, which would approve new, revised, and reaffirmed Code Cases published by the American Society of Mechanical Engineers. The NRC is also incorporating by reference one NRC NUREG associated with a proposed condition on one of the regulatory guides. This proposed action would allow nuclear power plant licensees, and applicants for construction permits, operating licenses, combined licenses, standard design certifications, standard design approvals and manufacturing licenses, to use the Code Cases listed in these draft regulatory guides as voluntary alternatives to engineering standards for the construction, inservice inspection, and inservice testing of nuclear power plant components. (...)