There has been very little research globally on the implementation of national policy interventions to address School-Related Gender-Based Violence (SRGBV). SRGBV describes physical, sexual and psychological acts of violence in and around schools, underpinned by unequal access to resources and power, and inequitable norms and stereotypes based on gender. A key intervention of governments around the world has been to develop Codes of Conduct for school communities, that set professional standards and hold staff and students accountable for SRGBV and other forms of misconduct. Yet there are few studies that look in depth at how these codes have been implemented in schools. In Ethiopia, a Code of Conduct on Prevention of SRGBV in Schools was introduced in 2014 and has been rolled out in all regions across Ethiopia. In addition, a Violence Reporting Tool (VRT) was developed to gather data on incidents of violence in schools. In 2017, the Ministry of Education (MoE) and UNICEF Ethiopia prioritised a study to look in depth at how the Code was understood and used at national, regional, district and in particular at school levels. The findings from the study will help to inform the MoE’s review of the Code and the reporting tools, thus having potential to make an important contribution to improving the safety of girls and boys in and around schools in Ethiopia. The study will also help to build knowledge globally about the challenges and potential for Codes of Conduct, and related work to prevent and respond to violence in schools.