After EPA announced that it would retain the CERCLA hazardous substance designations for PFOA and PFOS on September 17, 2025, it filed a motion to lift the abeyance from the ongoing litigation regarding the designations in the D.C. Circuit in Chamber of Commerce of the United States of America v. EPA, No. 24-1193 (D.C. Cir.). The case was initiated in June 2024 when the U.S. Chamber of Commerce and other industry groups challenged the Biden administration’s final rule designating PFOA and PFOS as CERCLA hazardous substances in the D.C. …
- People
- Practices
- Aerospace, Aviation & Airports
- Construction
- Corporate & Commercial
- Data Center Development
- Emerging Technologies
- Employment & Labor
- Energy & Natural Resources
- Environmental
- Litigation
- Pipeline & HazMat Safety
- Public Sector
- Real Estate, Land Use & Zoning
- Transportation Technology & Energy
- Solvaire – Diligence, Discovery & Document Management
- Perspectives
- Firm
- DE&I
- Make a Payment

View our attorney spotlight on 
AI meeting assistants offer numerous benefits, including allowing participants who would otherwise be taking notes to stay fully engaged, automatically generating meeting summaries and action items, producing uniform and unbiased notes for all participants, and even identifying speakers by their voices. But what many users do not fully appreciate is that these tools introduce a third party into conversations historically governed by strict privacy and confidentiality rules, a shift that carries profound consequences for attorney–client privilege, wiretap compliance, compliance with privacy laws, Pennsylvania’s Right to Know Law (RTKL), and discovery exposure.
In response to President Trump’s Executive Order 14179, “Removing Barriers to American Leadership in Artificial Intelligence (AI),” EPA announced this week a new EPA webpage dedicated to compiling agency resources related to the Clean Air Act requirements potentially applicable to the development of data centers and AI facilities across the United States. The webpage, Clean Air Act Resources for Data Centers, is intended to promote transparency by aiding developers and other interested parties in locating various agency resources, including Clean Air Act regulations, interpretative guidance, and technical tools, that may assist with Clean Air Act permitting and air quality modeling during project development.
When can an employee hold its employer liable for harassment by a third-party? In her recent article in The Legal Intelligencer, 


On November 10, 2025, EPA announced a proposed revision to regulations issued under Toxic Substances Control Act (TSCA) Section 8(a)(7), which would reduce certain per and polyfluoroalkyl substance (PFAS) reporting requirements for manufacturers and importers. Babst Calland’s Environmental Practice attorneys are closely tracking EPA’s PFAS actions, and our attorneys are available to provide strategic advice on how developing PFAS regulations may affect your business. For more information or answers to questions, please contact
Babst Calland is pleased to announce the addition of Morgan Hubbard, an associate in the Pittsburgh office. 
