In December 2013, while attending Achieve's Annual State Leadership Team Meeting in Alexandria, VA, leaders from Connecticut, Maine, New Hampshire, Rhode Island, and Vermont issued a call to action to create a national movement for postsecondary leaders to signal their support for proficiency-based and competency-based high school diplomas and transcripts. Achieve has been working to support 12 states, including the five New England states, in advancing their policy and practice through the Competency-Based Pathways (CBP) State Partnership. In response to this call to action, Achieve partnered with The Learning Accelerator and the Center for Innovation in Education to plan an initial convening of leaders and stakeholders from K-12 and postsecondary education--a convening designed to build guidance and recommendations for what it would take for postsecondary education to signal its support. The conversation that took place on May 29-30, 2014, in Washington, DC, was a first step in building this movement. This document summarizes the intent behind the convening and describes several key lessons that presenters shared as well as findings that emerged from discussions. A list of participants concludes the paper.