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The Department of Labor’s Proposed Safe Harbor for Alternative Investments in 401(k) Plans

Reported by Blankrome
Jun 8, 2026· 2 min read
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Key Takeaways
  • • The Department of Labor has proposed a six-factor safe harbor framework designed to establish a presumption of reasonableness for fiduciaries selecting designated investment alternatives in 401(k) plans, including alternative assets.
  • • The proposed rule was prompted by Executive Order 14330 and is intended to facilitate greater access to alternative investments—including private market investments (debt, equity, credit, and infrastructure), digital assets, and other non-traditional options—for retirement savers.
  • • The safe harbor applies to all investment selections in 401(k) plans, not exclusively to alternatives, but establishes a process-based standard that fiduciaries must follow to satisfy their duty of prudence.
  • • The regulation does not require plans to offer fully liquid investment options, but fiduciaries must ensure that selected investments can meet liquidity needs while maintaining the flexibility to include less-liquid alternatives.
  • • The proposed rule is expected to reduce fiduciary litigation risk by providing clarity on prudent selection processes, potentially unlocking significant capital flows into alternative asset classes within retirement plans.
Summary
The Department of Labor has unveiled a landmark proposed regulation establishing a safe harbor for 401(k) plan fiduciaries selecting designated investment alternatives. The rule, announced on June 8, 2026, creates a six-factor safe harbor framework designed to provide a presumption of reasonableness for investment selections, addressing long-standing uncertainty around fiduciary duties in this context.

The proposed regulation was initiated by Executive Order 14330 and directly responds to demand for greater exposure to alternative assets within retirement plans. The rule focuses on private market investments—including private debt, private equity, credit facilities, and infrastructure—as well as digital assets and other non-traditional investment vehicles. By establishing a clear, process-based standard, the DOL aims to remove barriers that have historically limited 401(k) plan access to these asset classes.

The safe harbor framework applies broadly to all investment selections within 401(k) plans, though it was motivated primarily by the expansion of alternatives. The six-factor approach guides fiduciaries through a prudent decision-making process, thereby reducing legal exposure and clarifying expectations. Importantly, while the regulation permits plans to include less-liquid alternatives, it requires fiduciaries to ensure that overall portfolio liquidity remains adequate for participant redemptions and plan operations—a balance intended to expand choice without compromising accessibility.

The proposed rule's process-based structure is expected to mitigate litigation risk for plan sponsors and asset managers by establishing a clear compliance roadmap. This clarity has significant implications for capital formation: it potentially unlocks substantial retirement savings for deployment into alternative assets, addressing a long-standing gap between institutional demand for alternatives and retail participant access through defined contribution plans. The regulation represents a substantial shift in regulatory posture toward alternative investment expansion within the retirement system.

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Blankrome The Department of Labor’s Proposed Safe Harbor for Alternative Investments in 401(k) Plans