# Lithium batteries exceeding 35 kg (Special Provision A54) — Postal shipping restrictions by item category

For Lithium batteries exceeding 35 kg (Special Provision A54), carrier is US DOT (49 CFR, air); restriction type is restricted; scope is air cargo; conditions is A lithium battery, including one packed with or contained in equipment, may exceed a mass of 35 kg only if approved by the Associate Administrator prior to shipment, noted on the shipping paper, recorded from its source on 2026-08-10.

- **Item category:** Lithium batteries exceeding 35 kg (Special Provision A54) _(verified: appears in the quote below)_
- **Carrier:** US DOT (49 CFR, air) _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** air cargo _(our reading, not quoted from the source)_
- **Conditions:** A lithium battery, including one packed with or contained in equipment, may exceed a mass of 35 kg only if approved by the Associate Administrator prior to shipment, noted on the shipping paper. _(verified: appears in the quote below)_

## What the source says

> may have a mass exceeding 35 kg if approved by the Associate Administrator prior to shipment. When approved by the Associate Administrator and shipped in accordance with this special provision, the special provision must be noted on the shipping paper.

## Source

- https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-B

Last verified: 2026-08-10. Review by: 2027-08-10.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).