MTC, an ETS company, is a national nonprofit membership organization that helps make mastery learning—or competency-based education—available to all learners. MTC, an ETS company, is a national nonprofit organization that helps make mastery learning available to all learners. Mastery Transcript Consortium® (MTC), an ETS company, is a national and global nonprofit membership organization that helps make mastery learning—or competency-based education—available to all learners. Because this approach does not generate traditional metrics, we co-create uniquely flexible and scalable learning records to solve the challenge of credentialing. MTC accelerates equitable access to and widespread implementation of mastery learning models, empowering students to showcase competencies and share evidence of their learning.