FATCA/CRS FAQs:-

address the FFI has identified for the account holder. ... (TIN) is a nine digit identification number used by the Internal Revenue Service (IRS) in the administration of tax laws in US. It is issued either by the Social Security Administration (SSA) or by the IRS. ... Given below is the country wise list of acceptable documents as TINs ...

  Document, Used, Acceptable, Acceptable documents