The survey fieldwork was conducted during August and September 2006 in the 14 South/Centre governorates. In Anbar governorate, the fieldwork was conducted in October and November 2006, while fieldwork for the Kurdistan region was conducted during February and March 2007. Overall, 407 personnel participated in the implementation of the survey, consisting of 100 central, local and field supervisors, 224 interviewers evenly split between males and females, and 83 central editors and data entry personnel.