To prepare trainees a career in the electrical field, the National Center for Construction Education and Research (NCCER) offers a comprehensive, 4-level Electrical curriculum that complies with DOL time-based standards for apprenticeship. Through a combination of convenient online exercises and live classroom and lab training, Electrical Levels 1-4 are delivered over four semesters, presenting theoretical and practical skills necessary for becoming a professional electrician. Level 1 is offered each fall semester.