As matches, lighters, and other heat sources are the leading causes of fire deaths for children,[11] many jurisdictions, such as the EU,[12] have prohibited the marketing of novelty or non-child resistant lighters. Examples of child resistance features, include the use of a smooth or shielded spark wheel. Many people remove the child proofing from lighters by prying off the metal with scissors or keys, making the lighter easier to ignite.
In 2005 the fourth edition of the ISO standard was released (ISO9994:2005). The main change to the 2004 Standard is the inclusion of specifications on safety symbols.