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Article | Insider

Is testing group health plans for mental health and substance use disorder parity still required?

By Maureen Gammon and Kathleen Rosenow | May 28, 2025

Even with recent litigation, the 2013 Mental Health Parity and Addiction Equity Act final regulation is still in effect. Our Q&A for group health plan sponsors discusses current requirements.
Health and Benefits|Benefits Administration and Outsourcing Solutions
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Question

We are confused by recent litigation and government statements regarding mental health parity testing requirements. Does our company still need to test our group health plan’s mental health (MH) and substance use disorder (SUD) benefits for parity and conduct nonquantitative treatment limitation (NQTL) comparative analysis under the Mental Health Parity and Addiction Equity Act (MHPAEA) and the Consolidated Appropriations Act, 2021 (CAA)?


Answer

Yes. Testing for both quantitative and nonquantitative parity between a group health plan’s MH/SUD benefits and medical/surgical (M/S) benefits and conducting NQTL comparative analyses continues to be required under MHPAEA and CAA.

MHPAEA and CAA

Under MHPAEA, group health plans may not impose less favorable financial requirements (e.g., deductibles, copayments and coinsurance), quantitative treatment limitations (e.g., day or visit limits) and NQTLs (e.g., prior authorization, standards related to network composition and other medical management techniques) on MH/SUD benefits than on M/S benefits. The 2013 MHPAEA final regulation issued by the Departments of Labor, Health and Human Services, and the Treasury remains in effect.

CAA added a requirement for group health plans to conduct comparative analyses of the design and application of NQTLs used for MH/SUD benefits compared with M/S benefits and provide them to the Departments upon request. The Departments have been actively auditing group health plans since the CAA provisions took effect in February 2021.

Last fall, the Departments published a final regulation amending certain provisions of the 2013 MHPAEA final regulation and adding new provisions on the design and application of NQTLs, data collection and evaluation, content requirements and time frames for responding to requests for NQTL comparative analyses.[1] The final regulation establishes minimum standards for developing comparative analyses to assess whether each NQTL complies with MHPAEA’s parity requirements. Generally, the final regulation applied for plan years beginning on or after January 1, 2025; however, some key requirements were delayed until plan years beginning on or after January 1, 2026.

ERIC lawsuit opposing parts of the MHPAEA final regulation

In January 2025, the ERISA Industry Committee (ERIC) filed a lawsuit challenging the 2024 MHPAEA final regulation. Among other things, ERIC claimed that the Departments exceeded their statutory authority by including the following allegedly unlawful provisions in the final regulation:

  • The “meaningful benefits” standard, which appears to mandate benefits even though MHPAEA is not intended to include a benefits mandate
  • The “material differences in access” standard, which appears to impose a disparate impact standard, when MHPAEA only requires parity in plan terms and in the application of those terms to MH/SUD and M/S benefits
  • The fiduciary certification requirement, which requires a named plan fiduciary to certify they have engaged in a “prudent process” to select at least one qualified service provider to complete the plan’s comparative analysis of a plan’s parity testing, when Congress did not authorize or mandate such a certification in its prior MHPAEA amendments

Earlier this month, at the request of the Departments, the United States District Court for the District of Columbia paused the ERIC lawsuit until further order of the court. The court also ordered that the parties file a joint status report on August 7, 2025, and every 90 days thereafter, to report on the progress of the Departments’ reconsideration of the 2024 MHPAEA final regulation.[2]

2024 MHPAEA final regulation enforcement

In a non-enforcement statement, the Departments confirm that they will not enforce any new requirements imposed by the 2024 rule until a final court ruling on the ERIC lawsuit challenging certain provisions of the 2024 rule — plus an additional 18 months.

The Departments clarified that the provisions of the 2013 MHPAEA final regulation remain in effect, and plan sponsors still have an obligation to produce NQTL comparative analyses as required by the CAA. While this non-enforcement statement provides some relief for group health plan sponsors, the Departments note that they remain committed to ensuring individuals receive the protections provided under the MHPAEA. To that end, plan sponsors should continue reviewing their plan design to ensure compliance under the 2013 MHPAEA final regulation. This includes analyzing NQTLs and drafting comparative analyses that reflect the CAA statutory requirements.

Takeaways

  • The 2013 MHPAEA final regulation, as well as previous sub-regulatory guidance issued by the Departments, is still in effect and must be complied with.
  • Group health plans are required to conduct parity testing under the MHPAEA and CAA for both quantitative and nonquantitative limitations and be prepared to provide the CAA-required NQTL comparative analysis.
  • The NQTL analysis must demonstrate that the processes, strategies, evidentiary standards and other factors the plan uses in applying an NQTL to MH/SUD benefits are comparable to and applied no more stringently than those used with respect to M/S benefits.

Footnotes

  1. For details on the 2024 MHPAEA final regulation, see “Final mental health parity rules expand group health plan compliance requirements,” Insider, October 2024. Return to article
  2. See “Court pauses mental health parity regulation lawsuit, non-enforcement statement issued,” Insider, May 2025. Return to article

Authors


Senior Regulatory Advisor, Health and Benefits

Senior Regulatory Advisor, Health and Benefits

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