Assistive Technology Supplier, a credential given by RESNA to indicate years of experience and knowledge to practise in the area of supplying rehabilitation technology devices. The ATS credential can be earned by professionals with knowledge of equipment and funding options. They agree to practise within the scope of their knowledge and to abide by a code of ethical behavior. A similar credential is the CRTS, which is given by NRRTS to their members who earned the ATS certification.