TN 16 (11-96)
   RS 02001.455 Effective Date - U.S. Spanish Agreement
   
   
   
   The agreement with Spain became effective on April 1, 1988. It does not affect a worker's
      coverage under either country's system prior to that date. Thus, if an individual
      received earnings before April 1, 1988 that were dually covered, those earnings would
      be subject to social security taxes in both countries.