Mental health parity — the principle that insurance coverage for mental health and substance use disorders must be comparable to coverage for physical health — is one of the defining policy issues of modern U.S. health care. Enacted at the federal level through the Mental Health Parity and Addiction Equity Act (MHPAEA) of 2008, parity laws were designed to eliminate discriminatory insurance practices that made it harder for people to access mental health care.
By late 2025, enforcement of parity laws is at a critical inflection point due to major regulatory pauses, intense state-level enforcement actions, and shifting federal priorities — with significant implications for patients, providers, insurers, employers, and policymakers alike.
This article explores the key developments in mental health parity enforcement up through November 2025, organized by topic for clarity.
Federal Enforcement Changes and Enforcement Pause
The 2024 MHPAEA Final Rule
In September 2024, the U.S. Departments of Labor (DOL), Health and Human Services (HHS), and Treasury jointly issued a new final rule to strengthen mental health parity enforcement under MHPAEA. The rule was intended to ensure that health plans and insurers treat mental health and substance use disorder (MH/SUD) benefits no more restrictively than medical/surgical benefits. It expanded requirements particularly around nonquantitative treatment limitations (NQTLs) — such as prior authorization, step therapy, medical necessity protocols, and network adequacy — and required detailed comparative analyses of how plans applied these limitations.
These updates were set to take effect for group health plans beginning January 1, 2025, with certain provisions applying as late as January 1, 2026.
The Enforcement Pause in 2025
Despite the regulatory push in 2024, a major shift occurred in May 2025: the federal government announced a pause in enforcement of parts of the 2024 final rule. On May 15, 2025, the Departments of Labor, HHS, and Treasury issued a statement that they would not enforce new portions of the 2024 rule — particularly those provisions that differed from the 2013 parity regulations — until litigation is resolved and potentially longer (the agencies indicated a possible additional 18-month non-enforcement period). This action followed a legal challenge from the ERISA Industry Committee (ERIC), a large employer coalition, which argued the new rule exceeded the agencies’ statutory authority.
The enforcement pause does not eliminate parity obligations entirely. Core parity protections under MHPAEA — and longstanding regulations issued in 2013 — remain in force, meaning plans must still ensure that financial requirements (e.g., copays) and treatment limitations on mental health benefits are no more restrictive than those for medical benefits.
Implications of the Pause
- Employers and insurers received temporary administrative relief from complying with some of the 2024 rule’s more onerous reporting and comparative analysis requirements.
- Core parity obligations still apply, so compliance with the 2013 rules and statutory parity requirements is still necessary.
- The litigation and regulatory reexamination have created uncertainty about how parity will be enforced going forward.
- Advocates and mental health organizations have expressed concern about potential gaps in enforcement and access because the strongest new protections are not currently being applied.
Federal Legal and Regulatory Landscape
Ongoing Court Proceedings
Litigation by the ERISA Industry Committee against the 2024 parity rule is a central driver of the enforcement pause. ERIC filed its challenge in early 2025, arguing that the rule’s NQTL requirements were legally invalid and procedurally flawed. The U.S. District Court for the District of Columbia granted a stay of the regulatory challenge in May 2025, aligning with the federal enforcement pause and signaling an extended period of legal uncertainty.
Federal agencies also indicated a broader reexamination of MHPAEA enforcement practices, which could include revised guidance or new rulemaking in the future depending on litigation outcomes.
Federal Budget and Organizational Shifts
Although not strictly parity enforcement news, broader health care policy decisions in 2025, including Medicaid funding cuts and proposed reorganization of the Department of Health and Human Services, could indirectly affect parity enforcement by shifting federal priorities and reducing resources for enforcement bodies. Recent federal actions affecting mental health care access (including temporary program funding cuts and proposed restructuring of agencies like SAMHSA) have drawn advocacy pushback because they may weaken enforcement infrastructure or service provision.
State-Level Enforcement Activity
With federal enforcement in a holding pattern, many states have stepped up their own parity enforcement actions — targeting insurers for compliance failures and using state law authority to fine or penalize violations.
Washington State Fines Insurers
In late November 2025, the Washington State Office of the Insurance Commissioner fined Regence BlueShield $550,000 for violations of MHPAEA. The state determined that Regence failed to provide sufficient documentation to demonstrate that its behavioral health coverage was comparable to medical/surgical benefits — a core requirement under both federal and state parity laws.
These fines came after market conduct reviews and multiple requests for documentation over several years. Regulators cited disparities in areas such as in-network reimbursement rates and lack of transparency about how coverage limitations were applied — classic areas where parity violations frequently occur.
Washington is not the only state taking action. Recent reporting shows that multiple states have issued penalties in 2025 for mental health parity violations, sometimes in connection with slow reimbursements, improper claims denials, or discriminatory treatment limits — suggesting a wider trend of state enforcement.
Why State Enforcement Matters
- States are primary enforcers of many parity provisions, especially for fully insured plans licensed within state borders. Federal enforcement is often centered on self-funded plans under ERISA jurisdiction.
- State actions create accountability where federal enforcement may be limited during the current rulepause.
- Fines and penalties at the state level can lead insurers to change practices or improve parity compliance to avoid future enforcement actions.
Ongoing Challenges in Parity Enforcement
Even as legal and enforcement developments unfold, real-world compliance with parity laws remains a challenge.
Access Gaps Despite Parity Laws
Observers and advocacy groups report that many Americans still struggle to access mental health care on par with medical care — even where parity laws exist. For example, longstanding disparities in insurance coverage, network adequacy, and utilization management barriers often persist, leading to delayed care, out-of-pocket expenses, or denial of necessary services. One recent report highlighted persisting access barriers in states like Georgia even after parity laws were on the books.
This underscores that enforcement is only one element; robust implementation, provider availability, and insurer responsiveness all contribute to actual parity outcomes for patients.
Federal Enforcement Capacity Challenges
Reports from earlier in 2025 revealed that the federal enforcement apparatus — particularly the Department of Labor’s Employee Benefits Security Administration (EBSA) — faces challenges such as a lack of civil monetary penalty authority and underutilization of existing enforcement tools. This has historically limited how aggressively federal agencies can pursue parity violations.
What’s Next: Enforcement and Policy Prospects
Potential Regulatory Revisions
With enforcement paused and litigation ongoing, federal regulators have indicated plans to reexamine parity enforcement approaches, potentially culminating in revised regulations or new guidance. The outcome of ERIC’s lawsuit and future administrative rulemaking will be key determinants of the next chapter in federal parity enforcement.
Bipartisan Legislative Efforts
Although not specific to November 2025, the introduction of bipartisan bills like the Parity Enforcement Act earlier in 2025 reflects ongoing legislative interest in strengthening enforcement mechanisms and giving agencies more authority to hold insurers accountable. Such efforts could reappear in later sessions and influence future statute revisions.
Continued State Actions
Given the current federal landscape, state enforcement actions are likely to remain significant drivers of parity compliance. States with robust insurance regulatory frameworks may continue auditing plans, imposing penalties, and issuing guidance on compliance expectations.
Advocacy and Public Pressure
Mental health advocacy groups, patient organizations, and professional associations continue to push for stronger enforcement, greater access, and reduced disparities. Their influence on public opinion and policymaking can shape enforcement priorities and legislative initiatives moving forward.
Conclusion
As of November 2025, mental health parity enforcement in the United States stands at a complex crossroads. On one hand, the federal government’s pause on enforcing key aspects of the newly updated parity rules has created uncertainty and concern among advocates and compliance professionals. On the other hand, state regulatory authorities are stepping up enforcement efforts through fines and penalties that hold insurers accountable at the local level.
Real progress in parity enforcement will require clarity in federal regulations, sustained enforcement actions at both the federal and state levels, strong legislative support to enhance enforcement tools, and ongoing vigilance to ensure that parity laws translate into meaningful, equitable access to mental health care for the millions of Americans who need it.
