The National Healthcareer Association offers the Certified Phlebotomy Technician certification. Hospitals, laboratories and other employers have an increasing demand for phlebotomists. Most seek, and many require, a professional certification. It is a 2 hour exam consisting of 100 questions. Requirements to work as a phlebotomist vary state to state so candidates should check regulations in any state in which you wish you practice. (From https://www.nhanow.com/certifications/phlebotomy-technician).