This week, members of the United Nations (UN) Working Group on Human Rights and Transnational Corporations are making an official visit to the United States (US) as part of the Group’s mandate to promote the effective implementation of the UN Guiding Principles on Business and Human Rights. The visit, only the second by the Working Group since its establishment in 2011, provides an important opportunity to engage all stakeholders on efforts to make respect for human rights part of mainstream corporate practice in the US. The home of some of the world’s largest corporations, the US is an important test case for Guiding Principles implementation.