Below you will find letters of interpretation from the U.S. Department of Transportation that help to clarify the hazardous materials regulations that apply to lithium and lithium ion batteries.

DOT Interp Ltr on IMDG Code and SP 188 - Oct. 2006

DOT Interp Ltr on Testing CR2032 Batteries - August 2006

DOT Interp on Failing UN Tests - July 2006

DOT Interp Ltr on Defibs and Extra Battery - Dec. 2005

DOT Interp Ltr on Shipping Li ion Batteries for Disposal - Aug. 2005

DOT Interp Ltr on Net Weight of Lithium Battery - April 2005

DOT Interp Ltr on Batteries Packed with or Contained in Equipment - May 2004

DOT Interp Ltr on Change in Design and UN Testing - September 2008