In 2011, the Quad Council of Public Health Nursing Organizations updated its Core Competencies for Public Health Nurses (CCPHN) to align with the Council on Linkages Between Academia and Public Health Practice’s revised Core Competencies for Public Health Professionals (Core Competencies). The CCPHN are based on the same eight domains and three​​-tier​ structure as the Core Competencies, and can be used by public health nurses from entry-level to senior management in a variety of practice settings. Though based on the Core Competencies, the CCPHN reflect the unique competencies required for the practice of public health nursing. ​​​