Global Environmental Regulation, Policy, M&A & Market Update

On July 21, a coalition of 19 attorneys general — representing 18 states and the District of Columbia — joined by the City of New York, filed a petition for review with the D.C. Circuit Court of Appeals challenging EPA's rule extending compliance deadlines for the phase-down of hydrofluorocarbons (HFCs). California, Massachusetts, and Washington lead the coalition, joined by Colorado, Delaware, Hawaiʻi, Illinois, Maine, Maryland, Michigan, Minnesota, Nevada, New Jersey, New York, Oregon, Rhode Island, Vermont, and Wisconsin.^[1],[2],[5] The rule takes effect July 27 — the suit was filed six days ahead of that deadline.^[1]

The challenged rule, finalized by EPA in May 2026, reconsiders certain requirements under the AIM Act's Technology Transitions provisions. It extends by five or more years the deadlines for grocery chains and other businesses to transition away from HFCs, and temporarily raises the allowable global-warming-potential (GWP) limit for retail food refrigeration systems from 150–300 to 1,400 GWP, running from January 1, 2027 through January 1, 2032 (the lower limits then take effect). It also lets supermarkets, convenience stores, and bakeries continue using remote condensing systems with refrigerants carrying more than nine times the previously permitted GWP until 2032, and softens the January 1, 2026 installation deadline for residential and light-commercial AC and heat-pump systems using refrigerants above 700 GWP — contractors may install pre-2025 inventory until it's depleted.^[3],[4]

The coalition's argument is direct: the rule is "arbitrary and capricious" and undermines the AIM Act of 2020, which Congress passed and President Trump signed, mandating an 85% reduction in HFC production and consumption by 2036. HFCs are refrigerant gases up to 10,000 times more potent than an equivalent amount of CO₂ as greenhouse gases, and are among the fastest-growing sources of emissions both domestically and globally. The states also argue the rule risks HFC supply shortages and price spikes as it undermines the parallel supply/demand reduction the AIM Act was designed to enforce.^[2],[3]

Rather than finalizing new regulations, EPA released draft guidance on July 1 (formally announced July 6, Docket EPA-HQ-OW-2026-2509) aimed at helping wastewater-treatment-plant operators, landowners and farmers, and state and tribal water agencies reduce potential risks from PFOA and PFOS in sewage sludge and biosolids.^[7],[10] The guidance is explicitly non-binding: EPA states it "does not have the force and effect of law" and cannot be relied on in litigation against the United States. A 60-day public comment period closes September 4, 2026.^[7],[8]

The framing matters. EPA says it reviewed the prior administration's January 2025 Draft Risk Assessment on PFOA/PFOS in sewage sludge and determined it "exhibited a number of flaws" — relying, EPA says, on a simplified straight-line risk calculation and assumptions disconnected from real-world conditions, flagging risks at trace concentrations near the limit of detection that were lower than levels already found in ordinary soil and household products.^[8] That is a more accurate characterization than describing the agency as simply abandoning biosolids oversight: EPA frames this guidance as part of its broader, ongoing lifecycle-based PFAS strategy — the same framework under which it proposed the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6) in June, covering 30 currently unregulated drinking-water contaminants.^[9]

EPA formally announced it will waive fees for small communities applying for Water Infrastructure Finance and Innovation Act (WIFIA) loans in fiscal years 2026 and 2027. Communities with populations of 25,000 or fewer will no longer pay the $25,000 WIFIA application fee, and EPA will also waive the separate credit processing fee — which currently averages approximately $156,000 per loan — for eligible communities during the same window, subject to program requirements and available administrative funds. Combined, the waivers save eligible small and rural applicants nearly $200,000 per application.^[11],[12]

The WIFIA program currently has approximately $11 billion in flexible financing available for water infrastructure projects nationwide, and in small and rural communities it can finance up to 80% of eligible project costs — a materially higher share than typical municipal-bond-financed projects. Congress set aside 15% of WIFIA funds annually for small communities under 25,000 residents specifically, with a lower project-cost eligibility threshold ($5 million versus the standard $20 million).^[11]

Although adopted on June 15, New Jersey's new PFAS site-remediation standards are now moving into implementation and remain among the strictest state cleanup standards in the country. The New Jersey Department of Environmental Protection formally adopted regulations setting binding site remediation standards for four PFAS compounds — PFNA, PFOA, PFOS, and GenX (HFPO-DA) — converting interim standards that had been in effect since October 2022 and June 2023 into final, enforceable regulations.^[13],[15]

The rule amends three sections of the New Jersey Administrative Code — the Remediation Standards (N.J.A.C. 7:26D), Ground Water Quality Standards (N.J.A.C. 7:9C), and Technical Requirements for Site Remediation (N.J.A.C. 7:26E) — and requires parties responsible for remediation to clean up these contaminants to prevent future impacts on public health and the environment, including impacts to drinking water.^[13],[14] This is distinct from, and layers on top of, New Jersey's earlier drinking-water maximum contaminant levels — the state was the first in the nation to set an enforceable PFAS drinking-water standard, adopting an MCL for PFNA in 2018 and adding PFOA/PFOS limits in 2020.^[13]

Practically, the shift from interim to final standards embeds PFAS into routine remediation practice rather than treating it as a special case: responsible parties should expect broader sampling obligations, greater reliance on technical groundwater analysis, and a higher likelihood that PFAS contamination — not just the site's originally identified contaminants — drives investigation timelines and remedial cost.^[14]

Framing this week's news around PFAS alone would understate what's actually happening. Taken together, this week's four developments point to three distinct, expanding compliance markets running in parallel rather than a single regulatory issue driving all environmental-services demand:

This is a stronger investment narrative than a single-contaminant story because it shows environmental compliance spending broadening rather than concentrating in one regulatory risk. A federal reversal on any one front — PFAS drinking-water rescission, HFC rule survival, biosolids guidance finalization — dents one leg of the stool without collapsing the others.

This week reinforces a shift worth acting on: environmental compliance demand is no longer a single-contaminant story. Portfolios and platforms built exclusively around PFAS exposure are underweighting an emerging refrigerant-management category with the same structural durability, and are potentially overlooking the fact that state-level remediation standards keep generating work regardless of federal rulemaking outcomes.

• ▲ OVERWEIGHT: Refrigerant management, leak detection, and HVAC retrofit providers positioned for AIM Act compliance regardless of litigation outcome
• ▲ OVERWEIGHT: Biosolids and wastewater testing/consulting firms — demand persists even without a binding federal rule
• ▲ OVERWEIGHT: Small and mid-sized municipal water engineering, treatment-system, and construction firms benefiting from WIFIA's widened funnel
• ▲ OVERWEIGHT: Site-investigation and remediation consultancies with New Jersey (and similar state-standard) exposure
• ▼ MONITOR: Platforms concentrated solely in PFAS-driven revenue without refrigerant or state-remediation diversification

In the current environment, the stronger investment narrative is diversification itself: environmental compliance spending is broadening across refrigerants, water contaminants, and state-led remediation, rather than depending on any single regulatory issue's political survival.