A diagnostic fault comes up on a bus that's still under its powertrain warranty. The nearest dealer is two hours away, and your own shop has the lift, the tech, and the time — but not the diagnostic access to pull the fault history yourself. "Right to repair" is supposed to be the fix for exactly this. As of today, it's partly already law, partly stuck in Congress, and partly a two-state patchwork — and almost none of the coverage written about it is written with buses in mind. See how to build your own repair record independent of dealer access in a quick demo.
Right to Repair Laws for Bus Fleets & Repair Shops
Explore right to repair laws for buses, OEM diagnostic access, heavy-duty vehicle legislation and repair shop requirements. Here's what's actually enforceable today, what's still moving through Congress, and what a bus shop can control regardless of how either resolves.
Emissions Diagnostic Access
Clean Air Act requires OEMs to share repair info for heavy-duty emissions systems, right now.
H.R. 7389 Heavy-Duty Title
Passed committee 48–1 in May 2026; would cover vehicles over 14,000 lbs. Awaiting a House floor vote.
Two States, One Relevant to Buses
Only Maine's law explicitly reaches commercial vehicles over 14,000 lbs. Massachusetts's is still in litigation.
What's Already Law Today
Most right-to-repair coverage focuses on what Congress hasn't passed. One protection already exists, and it applies directly to buses: under the Clean Air Act, EPA requires vehicle manufacturers to provide "any and all information" needed to diagnose and repair emissions control systems on heavy-duty commercial vehicles — not just light-duty cars. A June 29, 2026 Presidential Memorandum led to EPA's "Freedom to Fix" guidance, reinforcing this existing requirement as of July 1, 2026. In practice, that means aftertreatment systems — DPF, SCR, DEF — already carry a legal right of diagnostic access most shops haven't tested.
What's Moving Through Congress
The federal REPAIR Act has stalled in full committee in two consecutive Congresses. In its place, a narrower path has actually advanced.
REPAIR Act Clears Subcommittee, Stalls Again
H.R. 1566 advanced out of subcommittee on February 10, 2026 — then stalled in full committee, as it did in the prior Congress.
A Narrower Title Gets Folded In
On May 21, 2026, the House Energy & Commerce Committee set aside the full REPAIR Act and instead advanced a scaled-down right-to-repair title inside H.R. 7389, the Motor Vehicle Modernization Act, 48–1.
The Heavy-Duty MOU Gets Teeth
The bill would make the existing 2015 heavy-duty MOU — which covers vehicles over 14,000 lbs, including buses — enforceable under federal law, with FTC enforcement authority.
Telematics Provisions Were Stripped
The direct wireless data access provisions at the heart of the original REPAIR Act didn't survive committee. As of the most recent reporting, the bill awaits a House floor vote — it is not yet enacted.
The State Patchwork
Right-to-repair laws exist in a growing number of states, but most cover electronics, agricultural equipment, or mobility devices — not automotive repair specifically. Only two states have automotive right-to-repair laws on the books, and they don't treat buses the same way.
Maine
- Passed by ballot initiative in 2023
- Explicitly covers commercial and heavy vehicles over 14,000 lbs
- The automotive right-to-repair law most directly relevant to bus shops
Massachusetts
- Upheld by district court in February 2025
- Appealed; argued before the First Circuit in February 2026
- No appellate ruling as of the most recent reporting — status still unsettled
This is a fast-moving legal area on both the federal and state level. Confirm current status with your state's attorney general's office or congress.gov before treating anything here as settled for a compliance decision. Book a demo to see how your shop documents repairs today.
Checklist: Building Repair-Data Independence Now
Regardless of how federal or state law resolves, these are in a shop's own control today.
- Every diagnostic session and fault code gets logged against the vehicle, not just the final repair
- A denied or limited OEM access request is recorded, with date and detail, not just worked around quietly
- Your shop's own repair history exists independent of any single dealer's portal or system
- Techs know which systems already carry a legal diagnostic-access right under the Clean Air Act today
- Leadership can see, at a glance, which repairs required a dealer trip and why
Expert Review: Dealer-Dependent vs. Documented-Independent Shops
Access rules will keep shifting. A shop's own documentation habits don't have to wait on Congress.
Dealer-Dependent Shop
- Every ambiguous fault means a dealer trip, by default
- No record of which repairs actually required OEM access versus didn't
- Repair history fragments across whichever dealer handled each job
- No evidence trail if access gets denied for something that should be covered
Documented-Independent Shop
- Dealer trips are reserved for what genuinely requires them
- A clear record shows which systems the shop can already diagnose in-house
- One repair history per vehicle, regardless of who touched it
- Denied access attempts are documented, useful operationally and for advocacy
The Bottom Line
Right to repair for buses isn't one law waiting to pass — it's an existing emissions-access right most shops haven't used, a narrower federal bill still short of the House floor, and a two-state patchwork where only one law actually names heavy vehicles. None of that changes what a shop can do today: document every repair, every diagnostic attempt, and every access limitation, so the shop's own record doesn't depend on how any of it resolves.
