BOSTON — A company that operates a fleet of buses in Massachusetts agreed to implement a series of anti-idling and emissions controls and pay $5.6 million for pollution mitigation and litigation costs to settle a yearslong Clean Air Act (CAA) suit brought in federal court by an environmental group alleging violations of state anti-idling regulations.

ATLANTA — A Georgia appeals panel on May 12 reversed a lower court’s dismissal of an assignee’s lawsuit alleging that an insurance broker failed to obtain a general liability insurance policy that did not bar coverage for liability arising out of bodily injury that was caused by assault, battery or the use of firearms, holding that the lower court erred in ruling that the claims were not assignable.

WASHINGTON, D.C. — Three pro se plaintiff-appellants lacked standing to sue the U.S. Patent and Trademark Office (PTO) after it rejected their request to submit their patent application as a micro entity because they failed to show that they retained an interest in the application, a Federal Circuit U.S. Court of Appeals panel held May 12, agreeing with a Texas federal judge who granted the PTO’s motion to dismiss.

DENVER — U.S. Department of Homeland Security and U.S. Immigration and Customs Enforcement officials “materially violated” a November 2025 preliminary injunction issued in a provisionally certified class case challenging various warrantless arrests of noncitizens, a federal judge in Colorado ruled May 12, partially granting a motion to enforce the injunction and ordering that all officers executing immigration arrests in the district must be trained on the requirements of the preliminary injunction or not make warrantless arrests.

NEW ORLEANS — A Fifth Circuit U.S. Court of Appeals panel affirmed a Texas federal judge’s bench trial judgment that defendant-appellant manufacturing entities infringed a battery company’s trademark on the word “Trojan” in connection with batteries for electric vehicles, including golf carts, by releasing an electric golf cart that used the word in its name; however, the panel vacated a permanent injunction entered against the defendant appellants, holding that it was overly broad.

ST. LOUIS — The Eighth Circuit U.S. Court of Appeals affirmed a lower federal court’s grant of summary judgment in favor of a professional liability insurer in its lawsuit seeking a declaratory judgment that it has no duty to defend and indemnify a $586,682.52 consent judgment brought against its broker insured in an underlying lawsuit.

ST. LOUIS — Becoming the first appellate court to weigh in on a growing wave of Employee Retirement Income Security Act forfeiture cases, the Eighth Circuit U.S. Court of Appeals on May 12 affirmed dismissal for lack of standing but ordered remand because it agreed with the appellant “that the district court abused its discretion by dismissing his complaint with prejudice.”

WASHINGTON, D.C. — The District of Columbia Circuit Court of Appeals on May 11 affirmed a lower court’s dismissal of a relator’s qui tam suit alleging violations of the False Claims Act (FCA) and similar state and District of Columbia laws related to outpatient opioid treatment centers’ billing to government insurers for alleged unnecessary urine drug tests and the use of unlicensed addiction counselors, finding in part that the relator “failed to sufficiently allege that false claims based on medically unnecessary urine drug tests were submitted to the government for payment.”