When is the governor required be the constitution to call a special session ? a. in the planning for an imminent hurricane b. during acts of terrorism c. when called by the president of the united states calls for it d. 3/5th of the senate and house petition the governor to do so

The President has the power, under Article II, Section 3 of the Constitution, to call a special session of the Congress during the current adjournment, in which the Congress now stands adjourned until January 2, 1948, unless in the meantime the President pro tempore of the Senate, the Speaker, and the majority leaders of both Houses jointly notify the members of both houses to reassemble.

The answer is installation.