The U.S. Department of Transportation on September 1, 2026 published a Federal Register notice opening a 60-day public comment period on the paperwork behind its 2026 Drone Infrastructure Inspection Grant (DIIG) Program — a competitive fund that will distribute up to $9 million to help state, local, tribal and territorial governments buy, lease or expand drone fleets used to inspect bridges, dams, roads and other critical infrastructure.

The notice itself is procedural: it is the initial 60-day comment period for a new Information Collection Request (ICR) — the routine step in which DOT asks the public to weigh in on the forms applicants will have to fill out, not on the funding decisions themselves. But the timing has given it outsized attention. It arrives as state aviation officials are tallying the costs of a separate and much larger federal action — the December 2025 ban on Chinese-manufactured drones — that has grounded or restricted 467 airframes across 23 states, according to industry reporting. Compliance estimates for replacing those fleets range from $50 million on the low end to as much as $2 billion, according to state submissions compiled by drone-industry outlets. Against that backdrop, a $9 million federal grant pot reads to many state aviation directors as a rounding error.

What the Notice Actually Does

The Federal Register filing was issued by DOT's Office of the Assistant Secretary for Research and Technology, through its Highly Automated Systems Safety Center of Excellence. It proposes a new OMB-approved information collection tied to the DIIG Program's grant-application package: the standard federal forms SF-424 (Application for Federal Assistance), SF-424A (Budget Information — Non-Construction Programs), SF-424B (Assurances), plus DIIG-specific templates for project narratives and budgets.

DOT estimates the annual paperwork burden on applicants at $185,151.08 in aggregate labor cost — the kind of figure that sounds oddly precise but is standard in ICR filings, which must itemize compliance-hour estimates under the Paperwork Reduction Act. Public comments on the proposed forms are due October 27, 2026, submitted either through regulations.gov or directly to DOT Dockets.

Individually, none of this changes who gets funded or how much. It is the administrative gatekeeping that precedes an actual funding opportunity announcement. But it does confirm that the FY2026 round of DIIG grants is moving forward on schedule, with the same $500,000-to-$9,000,000 award range and the same $9 million overall ceiling that DOT previously signaled.

The Program in Brief

DIIG was established under Section 912 of Public Law 118-63 and continued under Public Law 119-75, with statutory authorization of $12 million per year running from FY2025 through FY2028. The FY2026 appropriation, enacted February 3, 2026, funds the program at $9 million — below the full authorized ceiling but consistent with the funding level DOT has been forecasting since early August.

DOT expects to make roughly five awards this cycle, ranging from $500,000 to $9 million each. The federal cost-share is capped at 50% of a project's total cost, though applicants can request up to 75% federal funding with adequate justification — a detail confirmed independently by New Jersey Institute of Technology's research office, which tracks federal funding forecasts for university and government partners.

Eligibility is limited to government entities: state agencies, counties, cities and townships, tribal governments, metropolitan planning organizations, and consortia of these bodies. Private drone companies, nonprofits and universities cannot apply directly — they can only participate as contractors working under a government-entity grantee. The Grants.gov opportunity is listed under number DOT-HASS-FY26-DIIG.

A Grant Program Meeting a Much Bigger Bill

The newly opened comment period lands amid a widening gap between what DIIG can offer and what states say they actually need. Following the Chinese-drone ban that took effect December 22, 2025, states report 467 drone airframes now grounded or operating under restriction across 23 states. The National Association of State Aviation Officials (NASAO) has compiled state-by-state cost estimates that put combined compliance exposure — the cost of replacing, retrofitting or working around banned airframes — at $50 million to $2 billion, depending on how broadly "compliance cost" is defined and which downstream users (counties, cities, private contractors) are included.

Oregon's Department of Aviation, acting through NASAO, has already asked Congress for a $50 million emergency appropriation specific to that state, along with a compliance waiver extending through September 2027 to give agencies more time to transition fleets. Oregon Department of Aviation Director Kenji Sugahara welcomed the DIIG funding as a step in the right direction while making clear it falls well short of the need: "We've been pushing for a larger appropriation but this is a great start!"

The arithmetic is stark. By one industry estimate, the $9 million DIIG pot covers roughly 16% of states' moderate-case funding need, calculated at $56 million. Measured against the high end of the range — which folds in downstream costs to counties, cities and contractors — the federal grant covers under 0.5% of the total.

Why It Matters

DIIG was conceived as a program to help government agencies adopt drones for infrastructure inspection — a genuinely useful mission, given how much cheaper and safer drone-based bridge and dam inspections can be compared to sending crews out with ladders and boats. But the program's design predates the Chinese-drone ban, and its funding level was set without accounting for the sudden, mandatory fleet replacement costs the ban has now imposed on the same agencies DIIG is meant to serve.

That mismatch matters for two reasons. First, it illustrates a coordination gap between different arms of federal drone policy: one office is funding voluntary expansion of government drone programs while another has forced involuntary, uncompensated replacement of existing fleets, with no evident reconciliation between the two budgets. Second, it sets up a competitive scramble among the 23 affected states for a pool of money that was never sized to cover ban-driven replacement costs in the first place — meaning DIIG awards are likely to go toward genuinely new capability in a handful of jurisdictions rather than meaningfully offsetting the compliance bill facing the other 22. Agencies watching this space should treat DIIG as a modest capability grant, not a bailout, and should expect continued lobbying — like Oregon's emergency-appropriation request — for a separate, larger fund purpose-built to address ban-driven compliance costs.

Timeline and What Comes Next

  • Dec. 22, 2025: Federal ban on Chinese-manufactured drones takes effect, beginning the grounding/restriction of 467 airframes across 23 states.
  • Feb. 3, 2026: FY2026 appropriations enacted, funding DIIG at $9 million.
  • Aug. 3, 2026: Industry reporting details the gap between DIIG funding and state-reported DJI-ban compliance costs.
  • Sept. 1, 2026: DOT publishes 60-day ICR notice opening the public comment period on DIIG application forms.
  • Oct. 27, 2026: Public comment period on the proposed information collection closes.

Eligible agencies interested in applying should note that the current notice is not the funding opportunity announcement itself — it is the paperwork review that precedes it. Government entities considering an application, particularly those in one of the 23 states affected by the drone ban, will want to watch Grants.gov for the formal DOT-HASS-FY26-DIIG announcement and begin assembling the SF-424 family of forms in advance.

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