# (6) — Lithium battery shipping limits (49 CFR 173.185)

For (6), applies to is cell or battery prepared for transport; threshold is 35 kg; requirement is may have a mass exceeding 35 kg gross weight when transported by cargo-only aircraft, verified against its source on 2026-08-03.

- **Provision:** (6)
- **Applies to:** cell or battery prepared for transport
- **Threshold:** 35 kg
- **Requirement:** may have a mass exceeding 35 kg gross weight when transported by cargo-only aircraft

## What the source says

> ( 6 ) Irrespective of the limit specified in Column (9B) of the <https://www.ecfr.gov/current/title-49/section-172.101> § 172.101 Hazardous Materials Table, the cell or battery prepared for transport in accordance with this paragraph may have a mass exceeding 35 kg gross weight when transported by cargo-only aircraft;

## Source

- https://www.ecfr.gov/current/title-49/section-173.185

Last verified: 2026-08-03. Review by: 2027-01-30.
Part of [Lithium battery shipping limits (49 CFR 173.185)](https://referencesource.org/lithium-battery-shipping-limits/).