Environmental Protection Agency March 1, 2024 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the State of Delaware into Delaware's existing SIP-approved public notice requirements for certain permits authorized under Delaware regulation 1102. The revisions Delaware made to its underlying regulation standardize the public notices requirements across various permits under Delaware regulation 1102 to be consistent with EPA's October 18, 2016 final rule amendments to the notice and comment requirements for Title V, new source review and outer continental shelf (OCS) permit programs. This action is being taken under the Clean Air Act (CAA).

This action proposes editorial and technical revisions to the Environmental Protection Agency's (EPA's) Method 320 (Measurement of Vapor Phase Organic and Inorganic Emissions by Extractive Fourier Transform Infrared (FTIR) Spectroscopy). The proposed revisions include updating the validation and quality assurance (QA) spiking procedures of the method to provide a more performance-based approach with specified acceptance criteria. The proposed revisions will provide flexibility to the stack testing community while ensuring consistent implementation and quality of the measurement results across emissions sources and facilities.

The Environmental Protection Agency (EPA) is taking final action to approve portions of two State implementation plan (SIP) revisions submitted by the State of California to meet Clean Air Act (CAA) requirements for the 2008 8-hour ozone national ambient air quality standards (NAAQS or ``standards'') and the 2015 8-hour ozone NAAQS in the San Diego County ozone nonattainment area (``San Diego County area'' or ``area''). The first SIP revision, ``2020 Plan for Attaining the National Ambient Air Quality Standards for Ozone in San Diego County'' (``2020 San Diego County Ozone SIP'' or ``2020 Plan''), addresses most of the SIP requirements for the area. The second SIP revision, referred to as the ``Smog Check Certification,'' supplements the motor vehicle inspection and maintenance program portion of the 2020 Plan. The EPA is taking final action to approve the 2020 Plan, and the San Diego County area portion of the Smog Check Certification, as meeting all the applicable ozone nonattainment area requirements for the 2008 and 2015 8-hour ozone NAAQS addressed by the plan except for the emissions statement requirement that the EPA previously found to have been met and the contingency measure requirements, for which the EPA is deferring action.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving the CAA section 111(d) State plan revision submitted by the State of Arkansas for existing kraft pulp mills subject to the Kraft Pulp Mills Emission Guidelines (EG). The Arkansas section 111(d) plan revision for kraft pulp mills contains administrative changes to the State regulations and also aligns compliance testing requirements to make it consistent with EPA's kraft pulp mills new source performance standards. EPA is also notifying the public that we have received a CAA section 111(d) negative declaration from Arkansas for existing sulfuric acid plants subject to the Sulfuric Acid Plants EG. This negative declaration certifies that existing sulfuric acid plants subject to the Sulfuric Acid Plants EG and the requirements of sections 111(d) of the CAA do not exist within Arkansas. The EPA is approving the State plan revision for existing kraft pulp mills, accepting the negative declaration for existing sulfuric acid plants, withdrawing its approval of the Arkansas State plan for existing sulfuric acid plants, and amending the agency regulations in accordance with the requirements of the CAA.

This regulation establishes an exemption from the requirement of a tolerance for residues of 1,4-bis[[3-[2-(2- hydroxyethoxy)ethoxy]propyl]amino]-9,10-anthracenedione, when used as an inert ingredient (colorant/dye) on growing crops and raw agricultural commodities pre- and post-harvest in/on animals, limited to a maximum concentration of 0.5% in a pesticide formulation, and in antimicrobial formulations applied to food-contact surfaces in public eating places, dairy-processing equipment, and food-processing equipment and utensils not to exceed 300 ppm in the end-use concentration. Spring Regulatory Sciences on behalf of Colorants Solutions (new name Heubach Colorants USA LLC) submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of 1,4-bis[[3-[2-(2-hydroxyethoxy)ethoxy]propyl]amino]-9,10- anthracenedione, when used in accordance with the terms of those exemptions.