ERISA Benefits Law Desk ReferenceERISA Benefits Tech, LLC

Part 15 · Chapter 1

MHPAEA Parity and NQTL Comparative Analyses

Law stated as of October 3, 2026 · Health Plan Parity, CAA, and Transparency

Scope and status

This chapter covers the Mental Health Parity and Addiction Equity Act as amended by the CAA 2021: scope, the quantitative parity rules, nonquantitative treatment limitations (NQTLs), the statutory NQTL comparative-analysis requirement, and the 2024 final rule and its current nonenforcement posture — the central currency item in this area. The regulatory baseline is unusually unstable: the statute and the 2013 regulations are operative; the 2024 final rule is under a nonenforcement policy while stayed litigation and reconsideration proceed. Verify the live status before every engagement.

Citations are to primary authority (ERISA §712; Code §9812; PHSA §2726; the 2013 final regulations at 29 C.F.R. §2590.712; the 2024 final rule at 89 Fed. Reg. 77586; and agency guidance). Related questions are treated elsewhere: general welfare-plan design and the self-insured reform map in Part 13 (COBRA, HIPAA, and Welfare Benefits); claims/appeals mechanics in Part 4 (Reporting, Disclosure, Recordkeeping, and Claims); and fee/fiduciary litigation overlay in this Part's transparency/fee-disclosure chapter.

Threshold framing. MHPAEA work now has two distinct deliverables: (1) substantive parity — the plan's terms and operations must not treat MH/SUD benefits more restrictively than medical/surgical benefits; and (2) the comparative-analysis document — a written, currently maintained NQTL analysis that must be produced on request. The second is where DOL enforcement is concentrated: the first question in any DOL health investigation is "produce your comparative analyses," and an inadequate document is itself a violation regardless of substantive parity.

Sections

Part A is shown in full. The other sections are listed by title; their text is available to subscribers.

Part A — Scope and Application

A1.Who is covered

Part 15, ch. 1, § A1

MHPAEA applies to group health plans (insured and self-insured) that provide mental health or substance-use-disorder benefits — it does not mandate offering MH/SUD benefits; it regulates them once offered. Statute: ERISA §712; Code §9812; PHSA §2726. Key scope rules: retiree-only plans and excepted benefits are exempt; the small-employer exemption (≤50 employees) exists in the statute, but insured small-group coverage must cover MH/SUD as essential health benefits with parity-compliant terms under the ACA's EHB rules, so the exemption matters mainly for self-insured small plans; an increased-cost exemption exists but is rarely used (formal actuarial certification and notice requirements). Self-funded non-federal governmental plans can no longer newly opt out — the CAA 2023 sunset the HHS opt-out election (no new elections; existing elections expire subject to the transition rules). Statute: PHSA §2722(a)(2), as amended by CAA 2023 §1321; verify any legacy opt-out's expiration. MH/SUD versus medical/surgical classification of a condition follows the plan's terms consistent with generally recognized standards of current medical practice (ICD/DSM).

A2.The architecture — statute, 2013 regulations, CAA 2021, 2024 rule

Part 15, ch. 1, § A2

Four layers, all live in different ways: (1) the statute (parity in annual/lifetime limits, financial requirements, treatment limitations — plus, since the CAA 2021, the comparative-analysis obligation); (2) the 2013 final regulations — the operative regulatory baseline (six classifications, the substantially-all/predominant tests, the NQTL comparability standard); (3) the CAA 2021 §203 statutory comparative-analysis requirement (in effect since February 10, 2021); and (4) the 2024 final rule — currently under a nonenforcement policy (Part E). Statute: ERISA §712(a)(8); Final reg: 29 C.F.R. §2590.712 (2013); 89 Fed. Reg. 77586 (Sept. 23, 2024) (2024 rule).

Part B — Quantitative Parity (the settled layer)

  1. B1Classifications and the two-part testSubscribers

Part C — Nonquantitative Treatment Limitations

  1. C1The NQTL standardSubscribers
  2. C2"In operation" — the data dimensionSubscribers

Part D — The Statutory Comparative-Analysis Requirement (CAA 2021 §203)

  1. D1The obligationSubscribers
  2. D2Building a defensible analysisSubscribers

Part E — The 2024 Final Rule and the Nonenforcement Posture (central currency item)

  1. E1What the 2024 rule addedSubscribers
  2. E2ERIC v. the Departments and the May 2025 nonenforcement policySubscribers

Part F — Enforcement and Litigation

  1. F1DOL enforcement patternSubscribers
  2. F2Private litigationSubscribers

The first Part of each chapter is open to everyone. The remaining sections, with their authority and practice points, are available to subscribers and to clients of ERISA Benefits Law Group, PLLC whose engagement includes access.

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