"Social Security Organization"@en . . . "\u0633\u0627\u0632\u0645\u0627\u0646 \u062A\u0627\u0645\u06CC\u0646 \u0627\u062C\u062A\u0645\u0627\u0639\u06CC"@en . . "1975Z"^^ . . . . "Social Security Organization (SSO) is a social insurer organization in Iran which provides coverage of wage-earners and salaried workers as well as voluntary coverage of self-employed persons. In 1975, the Social Security Law was approved and the SSO was established.Iran did not legislate in favor of a universal social protection, but in 1996, the Center of the Statistics of Iran estimated that more than 73% of the Iranian population was covered by social security."@en .