necessary for the expeditious exercise of its functions.
XIII. To open all kinds of ports, establish maritime and frontier custom houses and designate their location.
XIV. To grant, according to law, pardons to criminals sentenced for offenses within the jurisdiction of the Federal tribunals, and to all persons sentenced for offenses of the common order in the Federal District and Territories.
XV. To grant exclusive privileges for a limited time, and according to the respective laws, to discoverers, inventors or improvers in any branch of industry.
XVI. Whenever the Senate shall not be in session the President may temporarily make the nominations enumerated in Clauses III and IV hereof, but these nominations shall be submitted to the Senate so soon as it reconvenes.
XVII. To exercise such other rights and duties as are expressly conferred upon him by this Constitution.
Art. 90. For the transaction of administrative matters of the Federal Government there shall be the number of Secretaries of Executive Departments which the Congress may by law establish, which law shall likewise assign among the various departments the several matters with which each shall be charged.
