The United States Registry of Exercise Professionals® (USREPS) is an internationally recognized registry of exercise professionals in the United States. USREPS is also an advocate for the exercise professional who holds NCCA-accredited exercise certification on issues that pertain to regulation, access and scope of work. Current ACSM certifications listed in USREPS include: Certified Personal Trainer, Certified Exercise Physiologist, Certified and Clinical Exercise Physiologist.