Final answer:
The North American Association of Central Cancer Registries (NAACCR) offers a certification program for state population-based registries, focusing on cancer data standards, training, and quality enhancement.
Step-by-step explanation:
The organization that has a certification program for state population-based registries is the North American Association of Central Cancer Registries (NAACCR). The NAACCR is dedicated to developing and promoting uniform data standards for cancer registration; it provides education, training, and certification for registrars and their programs. This not-for-profit organization works collectively with other groups, including governmental agencies like the CDC, to enhance the quality and use of cancer registry data.