U.S. Federal Register Tool

Regarding the Acquisition of Certain Assets of EMCORE Corporation by HieFo Corporation

To Implement the United States-Israel Agreement on Trade in Agricultural Products and for Other Purposes

Clean Air Act Title V Operating Permit Program Revision; District of Columbia

The Environmental Protection Agency (EPA) is proposing to approve a revision to the District of Columbia (DC, the District)'s title V operating permits program, submitted on behalf of the District by the Department of Energy and Environment (DOEE). The revision updated title V operating permit fees collected by DOEE in order to ensure that the title V operating program will continue to be adequately funded. The revision also reorganized some sections in Chapter 3 with no substantive change in content. This action is being taken under section 502 of the Clean Air Act (CAA).

Air Plan Approval; Missouri; Construction Permits Required

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Missouri State Implementation Plan (SIP) received on March 19, 2025, that contain updates to the construction permit requirement regulations for stationary and portable air sources in Missouri that help ensure ambient air quality standards are met. The revisions to this rule include updating the fees for facilities applying for and receiving construction permits for air pollution sources; removing a subsection from the state rule that was never approved in the SIP; and making administrative wording changes. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).

Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD or "District") portion of the California State Implementation Plan (SIP). These revisions concern certain amended or rescinded prohibitory and administrative rules. We are approving action on amended or rescinded rules that regulate the pollutants under the Clean Air Act (CAA or "Act").

Request for Information Regarding Security Considerations for Artificial Intelligence Agents

The Center for AI Standards and Innovation (CAISI), housed within the National Institute of Standards and Technology (NIST) at the Department of Commerce, is seeking information and insights from stakeholders on practices and methodologies for measuring and improving the secure development and deployment of artificial intelligence (AI) agent systems. AI agent systems are capable of taking autonomous actions that impact real-world systems or environments, and may be susceptible to hijacking, backdoor attacks, and other exploits. If left unchecked, these security risks may impact public safety, undermine consumer confidence, and curb adoption of the latest AI innovations. We encourage respondents to provide concrete examples, best practices, case studies, and actionable recommendations based on their experience developing and deploying AI agent systems and managing and anticipating their attendant risks. Responses may inform CAISI's work evaluating the security risks associated with various AI capabilities, assessing security vulnerabilities of AI systems, developing evaluation and assessment measurements and methods, generating technical guidelines and best practices to measure and improve the security of AI systems, and other activities related to the security of AI agent systems.

Center for Scientific Review; Notice of Closed Meeting

Center for Scientific Review; Notice of Closed Meeting

Arts Advisory Panel Meetings

Pursuant to the Federal Advisory Committee Act, as amended, notice is hereby given that 3 meetings of the Arts Advisory Panel to the National Council on the Arts will be held by teleconference or videoconference.

Air Plan Approval; Kentucky; Emissions Inventory and Nonattainment New Source Review for the Henderson-Webster Sulfur Dioxide Nonattainment Area

The Environmental Protection Agency (EPA) is approving two State Implementation Plan (SIP) revisions submitted by the Commonwealth of Kentucky (Commonwealth), through the Energy and Environment Cabinet, Division of Air Quality (DAQ) on January 26, 2024, and February 15, 2024, to certify two requirements under the Clean Air Act (CAA or Act). These revisions establish that the Kentucky SIP satisfies the nonattainment new source review (NNSR) and base year emissions inventory requirements for the 2010 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS) for the Henderson-Webster SO<INF>2</INF> nonattainment area (hereinafter "Henderson-Webster SO<INF>2</INF> Nonattainment Area" or "Area"). EPA is approving these revisions pursuant to the CAA.