Lithium Battery Mark Transition Ending

The Lithium Battery Mark Transition Ends December 31, 2026

If your company ships lithium batteries by ground, air, or ocean, an important transition period is coming to an end.

The older lithium battery handling mark — the version that included a mandatory telephone number — will no longer be accepted after December 31, 2026.

Beginning January 1, 2027, shippers must use the current lithium battery mark format that does not require a phone number.

Regulations Affected

This change aligns the transport regulations across multiple modes, including:

49 CFR in the United States
IATA Dangerous Goods Regulations for air transport
IMDG Code for ocean shipments

Note: Canada has not yet adopted the new lithium battery mark.

What Changed?

Years ago, the lithium battery handling mark required:

A battery symbol
Applicable UN numbers
A telephone number for “additional information.”

The modernized mark simplified these requirements. The current mark still requires:

The battery symbol
The applicable UN number(s)

During the transition period, both versions have generally been accepted. That transition officially ends December 31, 2026. After that date, the old mark with the outdated format may no longer comply with current regulations.

Why Was the Phone Number Removed?

It caused confusion. Many companies mistakenly believed the number on the mark had to be:

A 24-hour emergency number
Monitored at all times
Connected to a hazardous materials specialist

That was not always the regulatory intent, but it created confusion and inconsistent practices. Removing the number simplified compliance and reduced unnecessary questions from shippers and inspectors.

What Companies Should Do Now

As the transition deadline approaches, companies should:

Check preprinted boxes, labels, and packaging stock for old lithium battery marks that still display a phone number.
Ensure label-generation software uses the current mark format.
Employees may still be using older examples from outdated procedures or training materials.
Imported products and third-party fulfillment packaging may still contain older marks.
Order new labels.

Contact Us

Do you have any questions about shipping lithium batteries? Take a look at our Lithium Battery FAQ or contact our team of experts at 855.734.5469 or send us an email, we’re happy to help.