# 2026-00171: FAA Crafts Electric Engine Rules for ZeroAvia's Flying Future

2026-00171, Special Conditions: ZeroAvia, Inc. Model ZA601 Electric Engines, is a Federal Register proposed rule from Transportation Department, Federal Aviation Administration published 2026-01-08, effective Send comments on or before February 9, 2026. (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-00171
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-00171
- Title: Special Conditions: ZeroAvia, Inc. Model ZA601 Electric Engines
- Type: Proposed Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 633
- Published: 2026-01-08
- Effective: Send comments on or before February 9, 2026.
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-11

## In one line

FAA Crafts Electric Engine Rules for ZeroAvia's Flying Future

## Summary

The FAA is setting new safety rules for ZeroAvia’s ZA601 electric engines, which use a cool new electric system to power airplane propellers. These special conditions make sure these engines meet safety standards that current rules don’t cover. If you’re interested, you’ve got until February 9, 2026, to share your thoughts—no extra costs are expected for now.

## Abstract

This action proposes special conditions for ZeroAvia, Inc. (ZeroAvia) Model ZA601 electric engines that operate using electrical technology installed on the aircraft for use as an aircraft engine. These engines will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for aircraft engines. The design feature is an electrical system that will power a mechanical rotating shaft to provide propulsion for airplanes which will be certified separately from the engine. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-00171 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/08/2026-00171/special-conditions-zeroavia-inc-model-za601-electric-engines)
- [2026-00171 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-08/pdf/2026-00171.pdf)

## Related
- [Previous: 2026-00138, Airworthiness Directives; Airbus Helicopters](https://policyrisk.com/federal-register/2026-00138)
- [Next: 2026-00214, Air Plan Approval; Missouri; Construction Permits Required](https://policyrisk.com/federal-register/2026-00214)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-00171 (as of 2026-06-11).