Chile pioneered in Latin America not only the introduction of social security pensions, but the structural reform that privatized them and a process of "re-reform" implementing key improvements. A Presidential Commission in Chile, appointed in 2014 to evaluate reform progress and remaining problems in the pension system, released its report in September 2015. In light of the Commission's findings, the article assesses Chile's compliance with International Labour Organization social security guiding principles: social dialogue, universal coverage, equal treatment, social solidarity, gender equity, adequacy of benefits, efficiency and affordable administrative cost, social participation in management, state role and supervision, and financial sustainability. The exercise follows three stages: the structural reform (1981-2008), the re-reform (2008-2015), and the Presidential Commission proposals (2015).