On Tuesday, September 29, 2020 at 9:00 p.m. ET through 6:00 a.m. ET, Friday October 2, 2020, the Social Security Administration is conducting system maintenance on its Consent Based Social Security Number Verification (CBSV) service. Please note services will be unavailable during the maintenance window, but we will process your requests as soon as we can. Thank you in advance for your patience.