The Regional Support Office of the Bali Process on People Smuggling, Trafficking in Persons and Related Transnational Crime has initiated a project to develop a toolkit for interested States to analyse and improve how they register births, deaths and marriages of these key population subgroups. The toolkit will be based on international standards, recommendations and case studies of good practice. It is expected that the toolkit will be published for use in the second half of 2016. This is the concept note for the project.