Billions of dollars in federal funding for public transit, safety programs and infrastructure repair are set to expire tonight, according to Transportation For America, while highway funding continues without interruption.

The advocacy organization raised the alarm in a notice headlined "Billions for transit, safety, and repair will expire tonight while highway funding continues," drawing attention to a funding asymmetry at the heart of federal transportation policy: programs serving transit riders, road-safety initiatives and deferred maintenance face a cutoff, while money for highway programs keeps moving.

The scale of the money at stake is measured in the billions. Transportation For America's framing makes clear that the expiring dollars are not a marginal line item but a substantial share of federal support for transit operations, safety interventions and the repair of aging infrastructure across the country.

The lapse creates a two-tier system in the short term. Highway programs retain their funding stream, meaning road-building and road-related spending proceed as scheduled. Transit agencies, safety offices and repair projects do not enjoy the same protection, leaving their budgets exposed at the moment the deadline passes.

For transit operators, the expiration touches the funding that underpins service levels, fleet maintenance and capital work. When federal transit dollars stop flowing, agencies face difficult choices between cutting service, deferring vehicle and infrastructure maintenance, or finding substitute revenue — each option carrying costs for riders and for the networks themselves.

For safety programs, the stakes are measured in outcomes. Federal safety funding supports interventions aimed at reducing deaths and serious injuries on the nation's roads and rails. A lapse halts that work at the margin, and advocates have long argued that interruptions in safety funding translate directly into preventable casualties.

For repair budgets, the timing compounds an existing problem. The United States already carries a substantial backlog of deferred maintenance on bridges, roads, rail lines and transit assets. Funding that expires tonight was directed at chipping away at that backlog; its lapse means deterioration continues while the resources to address it pause.

Transportation For America, a national advocacy organization focused on transportation policy, positioned the expiration as a question of priorities. The contrast it draws — transit, safety and repair money expiring while highway funding continues — points to a structural feature of how federal transportation dollars are allocated and protected, rather than a one-off administrative accident.

The group's statement serves as both a warning and a call to action. By flagging the deadline in advance of tonight's expiration, Transportation For America is pressing policymakers to restore or extend the funding before the consequences — service reductions, stalled safety work and growing repair backlogs — accumulate across the networks that depend on it.

What happens next depends on Congress and the administration. Advocates will be watching whether lawmakers move to renew the expiring programs in the days ahead, or whether transit agencies, safety offices and repair crews begin the new funding period with empty accounts while highway spending continues on schedule.