Air ambulance is inside the No Surprises Act. Ground ambulance is not — and that one carve-out decides which dispute path, if any, an EMS claim has.
The No Surprises Act covers emergency services, non-emergency care by out-of-network clinicians at in-network facilities, and air ambulance. Congress left ground ambulance out and instead created the Advisory Committee on Ground Ambulance and Patient Billing (GAPB), which approved recommendations in fall 2023 and issued them in 2024. Federal follow-through has stalled; as of 2026 no federal ground ambulance balance-billing protection has been enacted.
Georgetown's Center on Health Insurance Reforms counts 22 states with some ground ambulance protection; the Commonwealth Fund's map lists 24 for fully insured plans. New Hampshire is among the newest: its prohibition took effect January 1, 2026 and covers both emergency and non-emergency transports under state-regulated plans. State laws vary on payment standards, which providers they cover, and whether non-emergency transports are included.
We file federal IDR, so we do not file ground ambulance disputes that the law excludes. For mixed air and ground operators, or hospital-based groups that also run transport, we screen the full out-of-network book and separate what is federally disputable from what isn't.
No. Ground ambulance services are excluded from the No Surprises Act's balance-billing protections and from the federal IDR process. Air ambulance services are covered.
Between 22 and 24 states, depending on the tracker: Georgetown CHIR counts 22, and the Commonwealth Fund's map lists 24 with protections for fully insured plans.
No. Federal IDR is limited to items and services the No Surprises Act covers. Ground ambulance disputes follow state law where it applies, or ordinary plan appeals and contract terms.
The GAPB advisory committee approved recommendations in fall 2023 and issued them in 2024, but federal legislative action has stalled.
Sources: Georgetown CHIR / Commonwealth Fund ground ambulance analysis; Commonwealth Fund state law map; CMS GAPB advisory committee; New Hampshire 2025 session law (effective Jan. 1, 2026). IDR Filings is not a law firm and this page is not legal advice.
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