As of the 2018 ASEC, the reason for move recoding expansion had only been used for migration research purposes by Census Bureau staff. The expansion was intended to be implemented in the resulting migration data and public data products as of 2016, but this did not happen. As of data year 2019, the expansion will be implemented. Related guidance for data users will be similar to this guidance initially issued for data year 2016. More information is available in the CPS-ASEC Geographic Mobility User Notes.