Join NCI

New states are welcome to join NCI at any time. At the beginning of each state fiscal year, NASDDDS issues a formal invitation for member states to join NCI (or to indicate continued participation) for the next “phase” of data collection. Phases run from July 1 to June 30. The documents below provide basic information about participation in NCI.

For more information, please contact Laura Vegas ( at NASDDDS or Alixe Bonardi (  at HSRI.

Information About Participation in NCI

New State Introduction to NCI
This chapter is a general introduction to the National Core Indicators and outlines considerations for participating states.

National Core Indicators: Data Collection Specifications 
This document summarizes the basic data collection requirements (sample size, timeframe, etc.) for each component of NCI.