In a June 17 letter to Transportation Secretary Ray LaHood, a coalition of concerned companies called for more stringent enforcement of international and domestic safety standards for the shipping of lithium batteries. The transportation of batteries using lithium and lithium-ion is currently regulated by the International Civil Aviation Organization's Technical Instructions for the Safe Transport of Dangerous Goods by Air and U.S. hazardous materials regulations. The coalition, which included battery, consumer electronics, and air freight companies, was prompted by an FAA report detailing 118 instances involving such materials since 1991.