Constitution of Zambia (Amendment) [No. 2 of 2016 37 (j) perform other functions specified by this Constitution or as prescribed. 93. (1) A decision or instruction of the President shall be in writing under the President’s signature. (2) The signature of the President on an instrument shall be under Public Seal. 94. (1) Where the performance of an executive function is expressed by this Constitution to be subject to approval by the National Assembly, the National Assembly shall, in the sitting next after receipt of the request for approval, give the approval within twenty-one days of the commencement of the sitting. Confirmation of presidential decisions and instructions Approval of appointments and measures by National Assembly (2) Where an approval is not given within the period specified in clause (1) or the National Assembly unreasonably refuses to give an approval as requested, the President shall refer the matter to the Constitutional Court for hearing and the decision of the Constitutional Court is final. (3) Where the Constitutional Court decides that the refusal or delay by the National Assembly was justified, the President shall comply with the order of the Court. (4) Where the Constitutional Court decides that the refusal or delay by the National Assembly was unreasonable, the National Assembly shall proceed to approve the matter. 95. (1) Where in this Constitution an appointment to an office or the taking of a measure by the President is subject to ratification by the National Assembly, the National Assembly shall, in the sitting next after receipt of the request for ratification, give its ratification within twenty-one days of the commencement of the sitting. (2) Where ratification is not given within the period specified in clause (1), the President shall propose another measure or appoint another person to that office and submit that measure or appointment for ratification by the National Assembly. (3) Where the National Assembly refuses or delays the ratification for the second time, the President shall propose another measure or appoint another person to that office and shall submit that measure or appointment for ratification by the National Assembly. (4) Where the National Assembly refuses or delays the ratification of the measure or appointment for the third time, that measure or appointment shall take effect. Ratification of appointments and measures by National Assembly