Data / Federal rules / 2026-07483
Special Conditions: ALOFT AeroArchitects, Gulfstream Aerospace Corporation Model G-IV, GIV-X, GV, and GV-SP Airplanes; Rechargeable Lithium Batteries and Battery System Installations
The Federal Aviation Administration published this final rule in the Federal Register on April 16, 2026. It took effect on April 16, 2026. Comments closed on June 1, 2026.
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What the agency says
These special conditions are issued for the Gulfstream Aerospace Corporation (Gulfstream) Model G-IV, GIV-X, GV, and GV-SP series airplanes, as modified by ALOFT AeroArchitects (ALOFT). These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is a main ship rechargeable lithium battery. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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.
Key facts
- Document number
- 2026-07483
- Type
- Final rule
- Action
- Final special conditions; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 16, 2026
- Takes effect
- April 16, 2026
- Comments due
- June 1, 2026
- Dates
- This action is effective on ALOFT on April 16, 2026. Send comments on or before June 1, 2026.
- Docket
- Docket No. FAA-2026-3490; Special Conditions No. 25-888-SC
- Code of Federal Regulations
- 14 CFR 25
- Topics
- Aircraft; Aviation safety; Reporting and recordkeeping requirements
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on aircraft · Rules on aviation safety · Rules on reporting and recordkeeping requirements · Published in April 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.