Key Takeaways
- • The U.S. Department of Labor released a proposed regulation on March 30, 2026, establishing a process-based safe harbor for fiduciaries selecting both traditional and alternative investments within 401(k) plans, addressing a long-standing gap in regulatory guidance.
- • The Proposed Rule creates a standardized framework that allows plan fiduciaries to satisfy their duties of prudence and loyalty by following documented, defensible selection processes rather than relying solely on outcomes-based evaluation, reducing litigation risk for plan sponsors.
- • The safe harbor extends explicitly to alternative investments (private equity, hedge funds, real estate, and other non-traditional assets), providing clarity that alternative allocations can meet fiduciary standards when proper due diligence processes are followed.
- • The regulation establishes minimum procedural requirements for investment selection, including documented evaluation criteria, comparative analysis, and ongoing monitoring protocols that fiduciaries must implement and maintain to qualify for safe harbor protection.
Summary
On March 30, 2026, the Department of Labor issued its proposed regulation titled "Fiduciary Duties in Selecting Designated Investment Alternatives," marking a significant development in how plan fiduciaries approach investment selection under ERISA. The Proposed Rule creates a process-based safe harbor that shifts emphasis from backward-looking performance metrics to forward-looking procedural rigor, offering fiduciaries greater protection from breach-of-fiduciary-duty claims when they follow documented selection methodologies.
The regulatory framework applies to both traditional investments (equities, bonds, mutual funds) and alternative investments (private equity, hedge funds, real estate, and structured products), addressing a critical ambiguity that has constrained alternative allocations in defined-contribution plans. Institutional investors and plan sponsors have long faced uncertainty regarding whether fiduciary standards permit meaningful alternative exposure in 401(k) menus, particularly given the illiquidity, complexity, and fee structures typical of these vehicles. The Proposed Rule explicitly permits alternative allocations when fiduciaries implement and document appropriate selection processes.
The safe harbor operates through a procedural checklist approach. Fiduciaries qualify for protection by establishing documented evaluation criteria (such as investment strategy, manager qualifications, fee reasonableness, and risk-adjusted performance expectations), conducting comparative analysis among candidate investments, and maintaining ongoing monitoring protocols. The rule does not guarantee that selected investments will perform well, nor does it eliminate fiduciary liability; rather, it provides a defensible pathway that demonstrates prudent process, reducing the evidentiary burden in litigation and establishing clear standards for DOL examination.
For alternative investment managers and plan sponsors considering alternative allocations, the Proposed Rule signals regulatory acceptance of these strategies within retirement plans, contingent on rigorous due diligence documentation. The rule is now open for public comment, and institutional investors should monitor the finalization timeline and any modifications that emerge during the comment period, as the final regulation will reshape fiduciary selection practices across the defined-contribution industry.
The regulatory framework applies to both traditional investments (equities, bonds, mutual funds) and alternative investments (private equity, hedge funds, real estate, and structured products), addressing a critical ambiguity that has constrained alternative allocations in defined-contribution plans. Institutional investors and plan sponsors have long faced uncertainty regarding whether fiduciary standards permit meaningful alternative exposure in 401(k) menus, particularly given the illiquidity, complexity, and fee structures typical of these vehicles. The Proposed Rule explicitly permits alternative allocations when fiduciaries implement and document appropriate selection processes.
The safe harbor operates through a procedural checklist approach. Fiduciaries qualify for protection by establishing documented evaluation criteria (such as investment strategy, manager qualifications, fee reasonableness, and risk-adjusted performance expectations), conducting comparative analysis among candidate investments, and maintaining ongoing monitoring protocols. The rule does not guarantee that selected investments will perform well, nor does it eliminate fiduciary liability; rather, it provides a defensible pathway that demonstrates prudent process, reducing the evidentiary burden in litigation and establishing clear standards for DOL examination.
For alternative investment managers and plan sponsors considering alternative allocations, the Proposed Rule signals regulatory acceptance of these strategies within retirement plans, contingent on rigorous due diligence documentation. The rule is now open for public comment, and institutional investors should monitor the finalization timeline and any modifications that emerge during the comment period, as the final regulation will reshape fiduciary selection practices across the defined-contribution industry.
Go deeper than the headline
Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.