date of the events giving rise to the emergency declaration, has withheld authorization or funding. 202. Effective periods of national emergencies (a) Temporary effective periods (1) In general Unless previously terminated pursuant to a proclamation of the President or an Act of Congress under subsection (c), a declaration of a national emergency shall remain in effect for 20 session days, in the case of the Senate, and 20 legislative days, in the case of the House, from the issuance of the proclamation under section 201(a) (not counting the day on which the proclamation was issued) and shall terminate when that period expires unless there is enacted into law a joint resolution of approval under section 203 with respect to the proclamation. (2) Exercise of powers and authorities Unless the declaration of national emergency has been terminated pursuant to a proclamation of the President or an Act of Congress under subsection (c), any emergency power or authority made available under a provision of law specified pursuant to section 201(b) may be exercised pursuant to a declaration of a national emergency for 20 session days, in the case of the Senate, and 20 legislative days, in the case of the House, from the issuance of the proclamation or Executive order (not counting the day on which such proclamation or Executive order was issued). That power or authority may not be exercised after that period expires unless there is enacted into law a joint resolution of approval under section 203 approving— (A) the proclamation of the national emergency or the Executive order