The NCHS Rapid Surveys System includes questions sponsored by CDC programs and other partners to address time-sensitive data needs, public health attitudes or behaviors, and developmental work to improve concept measurement and inform future question design. It also includes standard variables used for sample weighting and calibration, as well as selected portions of existing content from NCHS surveys (such as the National Health Interview Survey) to compare panel estimates to these benchmarks, assess the fitness-for-use of the panel survey data, and for other methodological purposes.