USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #17-0060

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Council on Safe Transport of Hazardous Articles, Inc.

Individual Name: L'Gena Shaffer

Location State: NY Country: US

View the Interpretation Document

Response text:

February 20, 2018
Ms. L’Gena Shaffer, CDGP
Technical Consultant
Council on Safe Transport of Hazardous Articles, Inc.
10 Hunter Brook Lane
Queensbury, NY  12804
Reference No. 17-0060

This letter is in response to your January 19, 2017, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the carriage of non-spillable batteries used to power portable electronic devices on passenger-carrying aircraft.  Specifically, you reference a letter of interpretation previously issued by this Office under Reference No. 11-0113, and ask whether answer “A4,” which stated in part that a non-spillable battery is not permitted in a passenger’s carry-on baggage, should be revised based on recent regulatory amendments to § 175.10(a)(18)(iii).

The answer is yes; the previous answer “A4” in Reference No. 11-0113 is no longer valid.  A non-spillable battery is permitted in a passenger’s carry-on baggage, provided the non-spillable battery meets the requirements prescribed in § 175.10(a)(18)(iii).  Please note the exceptions provided in § 175.10(a)(18)(iii) for non-spillable batteries apply to portable electronic devices only—such as watches, cameras, camcorders, and medical devices—and not to a mobility aid—such as a wheelchair.  Further, the battery and equipment must conform to § 173.159a(d).  Each battery must not exceed a voltage greater than 12 volts and a watt-hour (Wh) rating of not more than 100 Wh.  No more than two individually protected spare batteries may be carried.  Such equipment and spare batteries may be carried in checked baggage or carry-on baggage.

I hope this information is helpful.  Please contact us if we can be of further assistance.


T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

175.10(a)(18), 173.159a(d), 175.10(a)(18)(iii)

Regulation Sections

Section Subject
173.159a Exceptions for non-spillable batteries
175.10 Exceptions for passengers, crewmembers, and air operators