non-ACS survey. Under this policy, the selection of an individual for the NSCG will exhaust the eligibility of the whole household for further survey contacts. Therefore, it becomes more difficult to draw a nationally representative household sample for other surveys after the sample for the NSCG has been drawn. To the extent that the NSCG will oversample rare populations, the possibility of having sufficient sample units for these smaller groups is further constrained.

There are some technical fixes to this problem that can be explored. NSF and the Census Bureau are considering the possibility of allocating access to the ACS sample by month. Other procedures to enable the NSCG sample draw while preserving sample for other surveys may well be developed with additional research.