The development of international human rights norms and law is an often-contentious process. Despite significant gains from recent research on the development and implementation of human rights law, little research has focused on strategies of contestation prior to final outcome documents like resolutions, declarations, or treaties. Amendments to UN Human Rights Council resolutions are a form of contestation, particularly validity contestation that happens prior to the passage of Council resolutions. This paper examines the use of amendments by states using descriptive (...) statistics from Council proceedings from 2006 through 2018 as well as case studies on women’s rights and civil society space to illustrate how states use amendments to frame their positions. Amendments are increasingly being used by states from the Global South to contest the validity of potential human rights norms at the Council. The long-term impacts of the use of amendments are an often overlooked but important part of the Council’s ability to promote and protect rights. (shrink)