What does the national language service corps do? National Language Service Corps. The National Language Service Corps (NLSC) is a civilian Corps of multilingual volunteers who are readily available to serve the federal government by providing foreign language services as required.What is the national linguistic services center? In 2007, the DoD launched the NLSC as a pilot program to identify and recruit on-call, volunteer, civilian language specialists to achieve their desired language capabilities. Initially, the NLSC aimed to maintain a pool of linguists proficient in ten languages.How many languages does nlsc support? Since then, the NLSC has expanded its capabilities to support over 414 languages and dialects. To meet the increasing need for professionals with language skills, in 2018 the NLSC extended its support beyond DoD organizations to all Federal Government agencies. External stakeholders have recognized NLSC’s contributions and efforts.What is the nlsc program? The National Language Service Corps (NLSC) is a congressionally authorized Department of Defense program that provides language and cultural support to U.S. Government agencies. Members are highly skilled language professionals who connect, share, and grow through networking, training, and testing opportunities.