Nationally Consistent Data Measures (NCDM)
The Tracking Network includes a core set of nationally consistent data and measures (NCDM) concerning health, exposures, and environmental hazards. NCDMs are the result of collaboration with partners and data stewards at the national, state, and local levels. CDC adopted them as Tracking standards. To determine data needs for the Tracking Network, a group of experts, including data stewards, evaluated data to determine whether they were suitable for environmental public health tracking. Critical elements from these data contributed to the development of recommendations for nationally consistent Tracking Network data.