Federal Mine Safety and Health Review Commission Redefines S&S Standard on Sept. 19, 2025

The Commission adopted a two-element S&S test and described a lower threshold that makes S&S allegations easier to support. This shift directly affects litigation risk assessments for contested citations, with a key uncertainty being whether the decision governs pending, non-final cases.

Executive Summary

The Commission issued a decision on Sept. 19, 2025, redefining the S&S standard to require only that a violation could contribute to a hazard and that it significantly and substantially contributes to that hazard, and characterizing the threshold as lower and easier for the Secretary to meet JD Supra. If this new standard applies to pending matters, operators with active non-S&S cases face a materially different risk profile; if not, the impact centers on future enforcement. The core uncertainty is applicability to pending cases.

Background

The development was triggered by the Commission’s decision in Secretary of Labor v. Consol Pennsylvania Coal Company on Sept. 19, 2025 JD Supra. The decision articulates a redefined S&S standard and states that it lowers the threshold for supporting S&S allegations JD Supra. The Secretary of Labor did not request a review of the S&S test on appeal in that case JD Supra. The S&S standard has experienced shifting interpretations over decades, underscoring ongoing doctrinal volatility Safety Law Matters.

Key Provisions

• Decision and date: On Sept. 19, 2025, the Federal Mine Safety and Health Review Commission issued its decision in Secretary of Labor v. Consol Pennsylvania Coal Company JD Supra.
• Redefined S&S test: The standard now requires only two elements: (1) a hazard to which the violation could contribute, and (2) that the violation significantly and substantially contributes to that hazard JD Supra.
• Lower threshold: The Commission’s decision lowers the S&S threshold, making it substantially easier for the Secretary of Labor and MSHA inspectors to support and uphold S&S allegations JD Supra.
• Procedural note: In the underlying appeal, the Secretary of Labor did not request review of the S&S test, even though the Commission ultimately redefined it JD Supra.
• Historical context: S&S interpretations have shifted over the decades, signaling that further evolution is possible and should be monitored Safety Law Matters.
• Baseline cost context: The average mining operator spends over $20,000 per year on citations and penalties, highlighting the financial stakes when enforcement standards shift Safety Law Matters.

Decision Framework

Two threshold questions drive your next steps: (1) Does the redefined S&S test govern your pending, non-final cases, or is it prospective only? (2) For your active non-S&S citations, do the facts include a hazard to which the violation could contribute under the new two-element test?

• If the redefined S&S test applies to pending cases, then the likelihood that the Secretary can support S&S allegations in your open dockets increases because the Commission characterized the threshold as lower and easier to meet JD Supra.
• If applicability is prospective only, then the impact concentrates on future inspections and citations, and the immediate effect on currently pending non-S&S cases is reduced.
• If many of your pending non-S&S citations involve a clear hazard and facts showing the violation could contribute to that hazard, then those cases are more vulnerable under the two-element S&S standard JD Supra.
• Before deciding, confirm: inventory all pending non-S&S contested citations; tag those with explicit hazards and plausible causal contribution; assess current annual citation and penalty spend against your litigation budget, noting that average operators spend over $20,000 per year on citations and penalties Safety Law Matters.
• Before deciding, confirm: from the decision text and subsequent legal analyses, whether the Commission’s redefined S&S test is being applied to pending matters or limited to future citations JD Supra.

What We’re Monitoring

• Clarification on applicability to pending cases through additional Commission or appellate guidance; the Sept. 19, 2025 decision is the current baseline JD Supra.
• How quickly MSHA and the Solicitor rely on the lowered threshold to frame and support S&S allegations in litigation, given the Commission’s description that S&S is now easier to support JD Supra.
• Ongoing industry commentary on the evolution of S&S interpretations, as the doctrine has shifted over decades Safety Law Matters.