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CAA

17 November 2020

EPA Proposes Amendments to Polyvinyl Chloride and Copolymers Production Emission Standards

On November 9, 2020, the U.S. Environmental Protection Agency (EPA) published proposed amendments to the 2012 National Emission Standards for Hazardous Air Pollutants (NESHAP) for Polyvinyl Chloride and Copolymers Production (PVC MACT). The proposed amendments, which are the result of industry and environmental group requests for reconsideration of the rule, propose to tighten certain maximum achievable control technology (MACT) limits, provide additional clarification about certain aspects of the rule, and eliminate waivers for excess emissions during a malfunction.

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27 October 2020

EPA Finalizes Project Emissions Accounting Rule for New Source Review Permitting Determinations

On October 22, 2020, the U.S. Environmental Protection Agency (EPA) published a prepublication version of a final rule clarifying the process for existing air pollution sources to determine whether the New Source Review (NSR) permitting program applies to proposed projects. The new rule clarifies and confirms that project emissions accounting can be considered during Step 1 of the two-step NSR applicability test, meaning that both emissions increases and decreases from the proposed modification will be considered. The two steps of the NSR applicability test consist of a first step to determine whether a proposed project will cause a significant emission increase of a regulated NSR pollutant and, if it would, the second step determines if there will be a significant net emission increase of the same regulated NSR pollutant considering all other contemporaneous emissions increases and decreases.

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15 October 2020

California Air Resources Board Releases 2020 Mobile Source Strategy

On October 2, 2020, the California Air Resources Board (CARB) unveiled a discussion draft of its 2020 Mobile Source Strategy. The strategy incorporates the zero-emission vehicle (ZEV) goals set forth in the recent Executive Order issued by California Governor Gavin Newsom and sets out steps for achieving those goals, such as requiring manufacturers to support and promote advanced technologies and in-use requirements for advanced technologies. (more…)

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08 October 2020

EPA Revises National Emission Standards for Hazardous Air Pollutants General Provisions to Allow Major Sources to Reclassify as Area Sources

On October 1, 2020, the U.S. Environmental Protection Agency (EPA) issued a prepublication version of a final rule under the Clean Air Act that will allow major sources of hazardous air pollutants (HAP) to reclassify as area sources if the source reduces its potential to emit HAPs below the major source threshold (10 tons per year of any single HAP or 25 tons per year of any combination of HAPs). EPA had previously applied a “once in, always in” interpretation through a May 1995 policy memorandum issued by John Seitz, then-Director of EPA’s Office of Air Quality Planning and Standards. Under that policy, a facility designated as a major source on the first substantive compliance date of an applicable major source National Emission Standards for Hazardous Air Pollutants rule had to retain its major source status regardless of whether the source subsequently reduced its potential to emit below major source thresholds. But on January 25, 2018, EPA withdrew the May 1995 policy, laying the groundwork for EPA’s action here.

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06 October 2020

EPA Extends Deadline for High-Speed Commercial Vessels to Install Tier 4-Certified Marine Diesel Engines

On October 2, 2020, the U.S. Environmental Protection Agency (EPA) issued a final rule amending the national marine diesel engine program set forth in 40 C.F.R. Part 1042. Through the amendment, EPA is providing boat manufacturers additional lead time to install Tier 4 marine diesel engines in certain high-speed commercial vessels. Tier 4 standards — applicable to marine diesel engines at or above 600 kilowatts — were expected to be phased in between 2014 and 2017 and were based on achieving emissions reductions through aftertreatment technology, such as selective catalytic reduction. While these engines are mostly used in various types of large workboats and passenger vessels, certain engines are used in high-speed vessels that need compact and powerful engine designs. After the Tier 4 standards were fully in effect, some high-speed boat manufacturers informed EPA that they were unable to find certified Tier 4 engines with suitable performance characteristics for the vessels they needed to build.

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29 September 2020

California Governor Directs State to Develop Near-Future Zero-Emission Vehicle Sales and Operation Mandates

On September 23, 2020 California Governor Gavin Newsom issued Executive Order N-79-20, expressing the goals that:

  • by 2035, 100% of all in-state sales of new passenger cars and trucks will be zero-emission vehicles (“ZEV”);
  • by 2045, 100% of all medium-and heavy-duty vehicles in the state be zero-emission for all operations where feasible (and the same goal for drayage trucks by 2035); and
  • by 2035, the State will transition to 100% zero-emission off-road vehicles and equipment (where feasible).

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20 August 2020

EPA’s Proposal to Freeze Ozone National Ambient Air Quality Standards Issued in Anticipation of Criticism

On August 14, the U.S. Environmental Protection Agency (EPA) published its proposal to retain the existing ozone national ambient air quality standards (NAAQS). The proposal sets an October 1 deadline for public comment and schedules two virtual hearings, for August 31 and September 1, 2020. The current ozone NAAQS were established in 2015 and set 70 parts per billion for both primary and secondary standards.

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