Insights

May 22, 2026: A Crowell & Moring team represented Kanders & Company in a complex carveout transaction in which Kanders acquired the biosecurity business of publicly traded Ginkgo Bioworks. The resulting company, Perimeter Systems, has launched as the world’s first integrated biosecurity infrastructure platform, designed to transform biological signals into real-time intelligence and accelerate decisive response. At closing, Perimeter secured $60 million in growth capital, led by Kanders in partnership with SCS Financial, Goldcrest Capital, Four Cities Capital, and the Safe Artificial Intelligence Fund (SAIF).

Washington – July 1, 2025: A Crowell & Moring team represented Parsons Corporation in its $89 million acquisition of Chesapeake Technology International, a defense technology firm known for its advanced capabilities supporting all-domain operations and the Indo-Pacific Command.

Washington – January 10, 2022: Crowell & Moring represented the founders of Aerial Armor in the sale of the company to Dedrone Holdings Inc., a leader in smart airport security.

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Action for Releases From Solid Waste Management Units,” under the Resource Conservation and Recovery Act (RCRA).[1] The withdrawn proposal would have revised RCRA corrective action regulations to expressly apply the broader statutory definition of “hazardous waste,” rather than only the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.

Responding to the D.C. Circuit’s deadline to inform the court how it wishes to proceed in litigation challenging the agency’s listing of two types of per- and polyfluoroalkyl substances (PFAS) as hazardous substances under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the Environmental Protection Agency (EPA) stood behind its rule. In a September 17, 2025 filing, EPA told the court that the Trump administration had completed its review and would ultimately keep the Biden-era CERCLA final rule in place. The agency also requested that the court remove—i.e. pause—the abeyance placed on the proceedings, so that the lawsuit could move forward and be adjudicated.

On September 11, 2025, the Environmental Protection Agency (EPA) asked the D.C. Circuit to vacate regulations for four types of polyfluoroalkyls (known collectively as “PFAS”) in drinking water. The motion for partial vacatur marks a significant reversal in the agency’s policy, as the EPA had previously vigorously defended legal challenges to the first-of-their-kind standards in federal court for the past two years. See American Water Works Association, et al. v. EPA, case no. 24-1188 and consolidated cases (D.C. Cir. filed June 7, 2024). Just this month, the case was given the green light to proceed, after being held in abeyance (at the request of both parties) so that the Trump administration could determine how it wished to proceed. The change signals a willingness on the part of the administration to act on previously issued non-legally binding announcements of forthcoming changes to Biden-era rules and may also serve as a harbinger for how the new administration will tackle PFAS under other statutes, such as the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).

Environmental, Social, and Governance (ESG) considerations are being elevated in corporate, corporate stakeholder, and regulator discourse as never before. Many companies are experiencing ESG pressures for the first time, and indeed they may seem new to entire industries. However, ESG has become an essential institutional investor criteria and will increasingly need to be integrated into the supply and value chains of public and private corporations as financial and other regulators catch up.

Environmental justice is the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.