SSA Supplemental Security Record (SSR) SIPP Extract

This file contains Protected Identification Keys (PIK) that link Social Security Administration (SSA) Supplemental Security Record (SSR) to the respondents in the internal Survey of Income and Program Participation (SIPP) panel microdata files. The Supplemental Security Record (SSR) is SSA's main file to track who is receiving Supplemental Security Income (SSI) benefits and the monthly benefit amounts payable.