NCSD, NACCHO and PHAB have issued a joint recommendation to DSTDP that the model of national certification for Disease Intervention Specialists (DIS) should be test-based. This completes the first phase of a multi-year project to develop DIS certification, involving hundreds of hours of consultation with DIS and credentialing experts.  NCSD thanks our partners and the many people who contributed to this first phase of the project.  For more information, watch the video here.