This memorandum contains an updated analysis of the responses provided by states parties to the questionnaire on explosive remnants of war and international humanitarian law issued by members of the Convention on Conventional Weapons (CCW) Working Group on Explosive Remnants of War in 2005 . Human Rights Watch believes that the responses to date lead to the conclusion that national implementation measures, especially with regard to cluster munitions and the submunitions they dispense, are not adequate, and that additional measures are required to ensure adequate protections for civilian populations.