Certification in one of the following preferred: National Association of Sports Medicine (NASM), American College of Sports Medicine (ACSM), American Council of Exercise (ACE), American Fitness Aerobic Association (AFAA), Aquatic Exercise Association (AEA) or other approved nationally accredited organization. The Pozez Jewish Community Center of Northern Virginia (Pozez JCC, the J) is a warm and welcoming, nonprofit, social service organization dedicated to offering quality programs, activities, and services that emphasize Jewish culture, identity, and values to people of all ages and backgrounds.