Objection with regard to the declaration made by Pakistan upon signature (November 15, 2005):
"The Government of the Kingdom of Spain has examined the Declaration made by the Government of the Islamic Republic of Pakistan on 3 November 2004 on signature of the International Covenant on Economic, Social and Cultural Rights, of 16 December 1966.
The Government of the Kingdom of Spain points out that regardless of what it may be called, a unilateral declaration made by a State for the purpose of excluding or changing the legal effects of certain provisions of a treaty as it applies to that State constitutes a reservation.
The Government of the Kingdom of Spain considers that the Declaration made by the Government of the Islamic Republic of Pakistan, which seeks to subject the application of the provisions of the Covenant to the provisions of the constitution of the Islamic Republic of Pakistan is a reservation which seeks to limit the legal effects of the Covenant as it applies to the Islamic Republic of Pakistan. A reservation that includes a general reference to national law without specifying its contents does not make it possible to determine clearly the extent to which the Islamic Republic of Pakistan has accepted the obligations of the Covenant and, consequently, creates doubts as to the commitment of the Islamic Republic of Pakistan to the object and purpose of the Covenant.
The Government of the Kingdom of Spain considers that the Declaration made by the Government of the Islamic Republic of Pakistan to the effect that it subjects its obligations under the International Covenant on Economic, Social and Cultural Rights to the provisions of its constitution is a reservation and that that reservation is incompatible with the object and purpose of the Covenant.
According to customary international law, as codified in the Vienna Convention on the Law of Treaties, reservations that are incompatible with the object and purpose of a treaty are not permissible.
Consequently, the Government of the Kingdom of Spain objects to the reservation made by the Government of the Islamic Republic of Pakistan to the International Covenant on Economic, Social and Cultural Rights.
This objection shall not preclude the entry into force of the Covenant between the Kingdom of Spain and the Islamic Republic of Pakistan."