The convention is supplemented by an optional protocol that provides for an individual complaints procedure and an investigation procedure. On 6 October 1999, the UN General Assembly adopted the Optional Protocol to the Convention on the Elimination of All Forms of Discrimination against Women. The Optional Protocol came into force on 22 December 2000.
In specific cases, women can submit individual complaints to the Committee on the Elimination of Discrimination against Women. In addition to the communications procedure, the optional protocol also provides for an investigation procedure in serious cases of discrimination.
Switzerland ratified the optional protocol on 29 September 2008, and it came into force on 29 December that year.
Optional Protocol to the Convention on the Elimination of All Forms of Discrimination against Women