This technical standard order (TSO) is for manufacturers applying for a TSO
authorization (TSOA) or letter of TSO design approval (LODA). In this TSO, the Federal
Aviation Administration (FAA) describes the minimum performance standards (MPS) non-
rechargeable lithium cells and batteries must meet for approval and identification with the
applicable TSO marking.

This advisory circular (AC) provides guidance and information needed to prepare and submit
an application for a U.S. airworthiness certificate by either using the Federal Aviation
Administration’s (FAA) online application tool for airworthiness certification, or FAA
Form 8130-6, Application for U.S. Airworthiness Certificate, paper form.

This AC is effective January 30, 2026 with the following exceptions:
• Title 14 CFR 21.191(j), Operating former military aircraft, is effective July 24,
2026.
• Effective July 24, 2026, to be eligible for a light-sport category aircraft special
airworthiness certificate under 14 CFR 21.190, Issue of a special airworthiness
certificate for a light-sport category aircraft, an aircraft must meet the requirements
under 14 CFR 22.100, Eligibility.

This notice announces new and revised operations specifications
(OpSpecs) and training specifications (TSpecs) applicable to powered-lift operations conducted
in accordance with Title 14 of the Code of Federal Regulations (14 CFR) parts 135, 142,
and 194. These authorizing documents will enable certificate holders (CH) utilizing powered-lift
to conduct pilot training and operations.

This change transmits revised pages to Order 8150.1D, Technical Standard
Order Program.

This order provides the minimum requirements that must be included in any new or
revised TSO. This information was previously contained in appendix G of FAA Order 8150.1D,
Technical Standard Order Program. The template contained herein is unchanged from the one
previously found in Order 8150.1D.

This advisory circular (AC) provides guidance and information for compliance with the
provisions under title 14, Code of Federal Regulations (14 CFR), part 33 on the materials
suitability and durability requirements of § 33.15, as applicable to the manufacture of titanium
alloy high energy rotating parts of aircraft engines.

This notice provides information and direction regarding the Ramp
Worker Safety National Custom Data Collection Tool (C DCT) to address the Federal Aviation
Administration (FAA) Reauthorization Act of 2024 (Public Law (PL) 118-63) Section 353.