Which of the following binds the States to implement the norms by enacting legislation

A "Covenant", such as the International Covenant on Civil and Political Rights or the International Covenant on Economic, Social and Cultural Rights, is a binding treaty: Article 2 of each Covenant obliges States parties to give effect to its rights, including by adopting legislative measures. A "Declaration", such as the Universal Declaration of Human Rights, and a "Recommendation" are not legally binding and impose no such obligation.