Insights

Earlier this month, the U.S. Environmental Protection Agency (EPA) withdrew a February 2024 Biden administration proposed rule, “Definition of Hazardous Waste Applicable to Corrective Action for Releases From Solid Waste Management Units,” under the Resource Conservation and Recovery Act (RCRA).[1] The withdrawn proposal would have revised RCRA corrective action regulations to expressly apply the broader statutory definition of “hazardous waste,” rather than only the narrower regulatory definition. Now, EPA is maintaining the status quo for corrective action under RCRA. However, EPA’s withdrawal of its proposed RCRA hazardous waste definition makes no mention of its corresponding proposal from 2024 to list nine per- and polyfluoroalkyl substances (PFAS) as RCRA hazardous constituents.[2] This disjointed withdrawal, while providing some certainty for regulated entities, does not resolve how EPA plans to address PFAS under the RCRA program.

Texas Attorney General (AG) Ken Paxton has embarked on an aggressive campaign of regulation through enforcement against some of the world’s largest technology companies.

Colorado’s original AI Act (SB 24-205), signed in May 2024, imposed broad obligations on developers and deployers of “high-risk AI systems” — including requiring risk management programs, impact assessments, and affirmative steps to prevent algorithmic discrimination across employment, housing, lending, insurance, health care, and education decisions. The operative date for SB 24-205 was extended twice, and a court temporarily suspended enforcement in early 2026, following a lawsuit filed by xAI, which the U.S. Department of Justice (DOJ) intervened to support. Industry feedback on SB 24-205 was generally negative. In response to this environment, Colorado’s legislature undertook a rewrite, drafting and passing SB 26-189 in a matter of weeks. SB 26-189 reflects the legislature’s effort to preserve the policy goal of filling the AI oversight vacuum given the lack of a comprehensive federal law, but within a more workable compliance framework.

On May 14, 2026, the U.S. Court of Appeals for the Federal Circuit issued a stark warning to government contractors: when a bid protest is filed involving your contract, failing to timely intervene can cost you the ability to defend your award.  In Global K9 Protection Group, LLC v. United States, the Federal Circuit upheld the denial of K2 Solutions, Inc.’s motion to intervene, finding that K2 had waited too long to act despite having sufficient reason to do so.

On May 13, 2026, the U.S. Court of Appeals for the Federal Circuit affirmed a district court judgment of no infringement in Actelion Pharmaceuticals Ltd. v. Mylan Pharmaceuticals Inc., No. 24-1641. The decision offers important guidance for patent holders and generic manufacturers on the role of industry standards in interpreting scientific terminology during claim construction, prosecution history estoppel, and the disclosure-dedication rule.

The UK has successfully concluded a milestone free trade agreement (FTA) with the Gulf Cooperation Council (GCC) countries. We set out below a high-level comment on the FTA’s chapters and some of the key provisions.

On 30 April 2026, the European Commission published draft merger guidelines that will replace both the 2004 Horizontal Merger Guidelines and the 2008 Non-Horizontal Merger Guidelines, consolidating them into a single analytical framework.

The U.S. Court of International Trade (CIT) is having a big year. While the U.S. Supreme Court’s affirmance of the CIT tariff ruling may be at the top of the headlines, the CIT is also making its mark on Hatch-Waxman pharmaceutical litigation. In late April 2026, the U.S. District Court for the District of New Jersey (DNJ) reassigned numerous Hatch-Waxman patent infringement cases involving 10 different drugs to Judge Jennifer Choe-Groves of the CIT, sitting by designation in the District of New Jersey. The cases currently assigned to Judge Choe-Groves relate to several different drug products, including LYNPARZA® (olaparib), RADICAVA ORS® (edaravone), NEXLETOL®/NEXLIZET® (bempedoic acid), ZEJULA® (niraparib), QULIPTA® (atogepant), UBRELVY® (ubrogepant), CREXONT® (carbidopa and levodopa), EVRYSDI® (risdiplam), SUFLAVE® (polyethylene glycol 3350, sodium sulfate, potassium chloride, magnesium sulfate, and sodium chloride for oral solution), and CAPLYTA® (lumateperone).

On May 1, 2026, the U.S. Cybersecurity and Infrastructure Security Agency (CISA), the U.S. National Security Agency (NSA), the Australian Cyber Security Centre, the UK National Cyber Security Centre, the Canadian Centre for Cyber Security, and the New Zealand National Cyber Security Centre, published joint guidance on the “Careful Adoption of Agentic AI Services” (Guidance).

According to the U.S. Supreme Court, freight brokers are the transportation industry’s “matchmakers, connecting sellers of goods to the carriers who move them.” Montgomery v. Caribe Transport II, LLC, No. 24-1238, slip op. at 1 (U.S. May 14, 2026). Those matchmakers now potentially face liability when they make a bad match.

On May 4, 2026, the U.S. Department of Justice (“DOJ”) filed a federal complaint seeking to enjoin Minnesota’s state-court climate lawsuit against major energy companies. DOJ contends that Minnesota’s claims—which target global greenhouse gas emissions—intrude on exclusive federal authority. The complaint asserts that Minnesota’s lawsuit violates the dormant Commerce Clause and is preempted based on uniquely federal interests, the prohibition on extraterritorial state regulation, the Clean Air Act (“CAA”), and the Foreign Affairs doctrine.

From June 11 to July 19, 2026, 16 cities across the United States, Mexico, and Canada will host the 2026 FIFA Men’s World Cup, the largest in history. For construction firms, vendors, and suppliers, this trinational event has presented a significant commercial opportunity. Yet, cross-border projects involving parties operating under three distinct legal systems — common law in the United States and Canada, and civil law in Mexico — also create fertile ground for commercial disputes. Given the scale, technical complexity, and commercial significance of the FIFA World Cup and all the projects surrounding it, disputes are often unavoidable. As companies navigate intricate contractual obligations across multiple jurisdictions, international arbitration may play a pivotal role in resolving conflicts tied to these major commercial undertakings.

It has been a couple of years since the introduction of Qatar's Judicial Enforcement Law No. 4 of 2024 (the Judicial Enforcement Law), but enforcement is still a process that many do not understand. It is therefore perhaps worth a reminder of the law and its far-reaching scope. I conclude the article with a brief look at how the law has benefitted creditors.

The Department of Justice (DOJ) and the cross-agency Trade Fraud Task Force have upped the ante by an order of magnitude in the government’s pursuit of customs fraud. On May 1, 2026—only a few months after setting its previous record-high customs-related False Claims Act (FCA) settlement of $54.4 million with Ceratizit USA, LLC—the DOJ shattered that record with a $549.5 million settlement with Perfectus Aluminum Inc., its subsidiary Perfectus Aluminum Acquisitions LLC, and a set of four affiliated warehousing companies. The Perfectus settlement resolves allegations that the defendants violated the FCA by evading antidumping and countervailing duties (AD/CVD). The settlement resolves three separate qui tam complaints filed by two individual relators and the Aluminum Extruders Council, an international industry association. Defendants were previously criminally convicted on charges related to the same scheme, and those convictions were affirmed by the Ninth Circuit in 2024.

The first applications to lift an automatic suspension under the Procurement Act 2023 (the Act) have recently been decided. In Parkingeye Limited v Velindre University NHS Trust & Anor [2026] EWHC 1019 (TCC), handed down on 1 May 2026, HHJ Keyser KC dismissed applications by two NHS contracting authorities to lift the suspension preventing them from concluding a car park management services contract. This is the first judicial consideration of the new test under section 102(2) of the Act.

The U.S. Court of Appeals for the Seventh Circuit recently vacated the U.S. Tax Court’s decision in Hyatt Hotels v. Commissioner, a case concerning the taxation of loyalty programs. The Seventh Circuit remanded the case to the Tax Court for further review.

PFAS in cosmetics is quickly becoming one of the highest-stakes compliance issues in the beauty and personal care industry.

For 15 years, the question “Should we file an IPR?” was easy. The answer — almost invariably — was “yes.” High institution rates, a famously skeptical U.S. Patent Trial and Appeal Board (PTAB), and minimal downside made inter partes review (IPR) a nearly reflexive tool in the litigator’s arsenal. U.S. Patent and Trademark Office (USPTO) Director Squires’ precedential decision issued May 14, 2026, in Magnolia Medical Technologies, Inc. v. Kurin, Inc. (IPR2026-00097) provides clarity to that calculus.

On May 5, 2026, CISA announced CI Fortify — an initiative directing critical infrastructure owners and operators to prepare for geopolitical conflict in which OT networks are actively targeted while communications infrastructure is simultaneously degraded.

On May 6, 2026, the Federal Aviation Administration (FAA) published a long-awaited Notice of Proposed Rulemaking (NPRM) that would create a formal process for designating drone-free zones — known as Unmanned Aircraft Flight Restrictions (UAFRs) — over critical infrastructure facilities. The proposed rule has significant implications for the entire drone ecosystem. Facility operators across a broad range of industries would gain a potential pathway to restrict unauthorized drone access to their airspace, while commercial drone operators and companies that rely on UAS services face new compliance obligations, operational constraints, and potential criminal liability in designated zones.