We began collecting information about the Asian Ethnicity of Heads/Reference Persons, Spouses/Partners and their children at (K40a/L40a/OS8A) in 2015, as well as in the Transition into Adulthood Supplement (TAS) in 2013. These variables are suppressed due to low case counts in each category. The Asian Ethnicity of Head/Reference Person and Spouse/Partner, Asian Ethnicity of Child, and Asian Ethnicity of TAS Individual Codebooks/Variable Lists describe these files.