2026-12919Proposed RuleWallet

FTA Updates Bus Testing Rules to Cut Red Tape

Published Date: 6/26/2026

Proposed Rule

Summary

The Federal Transit Administration is updating its bus testing rules to make the process faster and clearer for bus makers and buyers. These changes will help remove old test reports and improve the quality of new ones, making it easier to know which buses perform best. If you’re involved in bus manufacturing or buying, get ready to share your thoughts by August 25, 2026, and expect smoother testing ahead with no surprise costs.

Analyzed Economic Effects

8 provisions identified: 2 benefits, 6 costs, 0 mixed.

Bus Test Reports Expire After 10 Years

FTA proposes that full and partial bus testing reports will expire 10 years after publication. The expiration rule would phase in so the expiration provision becomes effective three years after publication of the final rule. FTA estimates industry testing recertification costs of $20,667,705 (total, undiscounted) and total costs of $21,492,172 over 2027–2036, with annualized costs of $1,968,313 (3% discount) and $1,618,569 (7% discount).

Upfront Fee for Repeat Test Submissions

FTA proposes that when a manufacturer resubmits a bus model that previously started and was withdrawn from testing, the manufacturer must pay the full applicable testing fee up front (100%). For the initial submission, the manufacturer's statutory share remains 20% due at contract signing; if a resubmitted bus later obtains a passing score, the manufacturer will be reimbursed FTA's share upon publication of the passing report.

Certification Requires Non‑Expired Reports at Award

FTA proposes to add that a recipient may only certify compliance based on a bus testing report that has not expired under Sec. 665.13(g) at the time of the initial contract award. If the base contract is awarded before the applicable report(s) expire, the recipient may still exercise contract options after the report(s) expire.

Test All Significant Modes of Operation

FTA proposes a new provision that, subject to feasibility and practicality, would require testing and reporting on all of a bus model's significant proposed modes of operation (for example, significant engine‑off driving range on hybrid buses).

Third‑Party Chassis Variants May Need Durability Test

FTA states that new bus models built on previously tested third‑party chassis, even if eligible for partial testing, will usually require at least the Structural Durability test. FTA notes the Structural Durability test alone represents 57% of the cost and 83% of the time of a full test in the 7‑year/200,000‑mile useful life category.

Tighter Unscheduled Maintenance Limits

FTA proposes new unscheduled maintenance (USM) hour limits that vary by useful life category: 12/500,000 → 125 hours (10.42 hours/year); 10/350,000 → 110 hours (11.00 hours/year); 7/200,000 → 80 hours (11.43 hours/year); 5/150,000 → 60 hours (12.00 hours/year); 4/100,000 → 50 hours (12.50 hours/year). FTA analyzed historical data and determined the changes would not significantly affect passing rates.

FTA May Use Aggregated Test Data for Research

FTA proposes to allow use of anonymized or aggregated Bus Testing data to support FTA‑conducted or sponsored research. Data attributable to a particular bus model or manufacturer would still be limited to release only in a bus testing report that the manufacturer has authorized for publication.

Non‑Recurring Engineering Hours Exempt from USM

FTA proposes a definition for non‑recurring engineering hours and proposes that such hours should not be counted toward unscheduled maintenance (USM) hours. The rationale is to avoid penalizing manufacturers who take time to resolve design flaws with validated fixes.

Your PRIA Score

Score Hidden

Personalized for You

How does this regulation affect your finances?

Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.

Free to start

Key Dates

Published Date
Comments Due
6/26/2026
8/25/2026

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
Federal Transit Administration
Source: View HTML

Related Federal Register Documents

Previous / Next Documents

Back to Federal Register