This document sets forth the Best Practices and Protocols for American Sign Language interpreters working within legal settings. The mission of the National Consortium of Interpreter Education Centers (NCIEC) is to build and promote effective practices in interpreting education. The NCIEC draws upon the wisdom and energy of experts, consumers and other stakeholders to advance the field. The NCIEC is dedicated to challenging the status quo by promoting innovation, strong partner networks and multiculturalism throughout its programming. As responsible stewards of public funding, NCIEC is committed to products, programs and services that maximize resources and are replicable, measurable, sustainable and non-proprietary. Towards the goal of increasing the number of qualified interpreters and advance the field of interpreting education, the NCIEC has established a number of work teams dedicated to a specific area of specialization. One such workgroup is the NCIEC Legal Interpreting Workgroup, comprised of a group of core and expert members focused on defining the best and effective practices associated with legal interpreting. Interpreting in the legal setting is a long-recognized area of specialization in the field of ASL-English interpreting. Tradition from the field of spoken language interpreting and legal community contribute to the conventional way legal interpreting work is performed. As well, practices have been conceived by ASL-English interpreter practitioners over time through a process of application of theory drawn from the profession’s scholarship. As more scholarship and research emerge, practices evolve, improve, and change.