The President is responsible for— (a) assenting to and signing Bills; (b) referring a Bill back to the National Assembly for reconsideration of the Bill’s constitutionality; (c) referring a Bill to the Constitutional Court for a decision on the Bill’s constitutionality; (d) summoning the National Assembly, the National Council of Provinces or Parliament to an extraordinary sitting to conduct special business; (e) making any appointments that the Constitution or legislation requires the President to make, other than as head of the national executive; (f) appointing commissions of inquiry; (g) calling a national referendum in terms of an Act of Parliament; (h) receiving and recognising foreign diplomatic and consular representatives; (i) appointing ambassadors, plenipotentiaries, and diplomatic and consular representatives; (j) pardoning or reprieving offenders and remitting any fines, penalties or forfeitures; and (k) conferring honours. [General Note: Honourable tributes instituted in Government Gazette 24155 of 6 December, 2002 and Government Gazette 25213 of 25 July, 2003.] Chapter 5: The President and National Executive