NTSB nominee backs mandatory ADS‑B In; STB nominee pledges rigorous merger review

Jun 24, 2026

At a Senate Commerce hearing, NTSB nominee Thomas Chapman urged mandating ADS‑B In where ADS‑B Out is required following the DCA mid‑air collision; STB nominee Karen Hedlund pledged to apply the statutory public‑interest standard and protect participants in pending merger reviews.

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Thomas Chapman, Presidentially nominated for a second term on the National Transportation Safety Board, told the Senate Commerce Committee that the ‘‘centerpiece’’ recommendation from the DCA mid‑air collision investigation is a requirement that aircraft be equipped with ADS‑B In in airspace where ADS‑B Out is required.

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