(a) In addition to the amounts specified heretofore in this act or any amendments thereto and subject to the provisions of subsection (b) of this section, each person, other than a member of the General Assembly, whose compensation is fixed in this act, shall be paid an amount to be determined in the following manner:

Such amount shall be prorated to each pay period, beginning with the pay period during which this amendatory act becomes effective and continuing thereafter, subject, however, to the provision that no such amount shall be paid in violation of Presidential Executive Order 11615, and any subsequent rules and regulations thereto covering the period only from 12:01 A.M. on August 16, 1971 to midnight November 13, 1971.

(b) The provisions of subsection (a) of this section are subject to the condition that such a person be employed for a period of at least six months by either House of the General Assembly to be eligible to receive such amount upon the effective date of this amendatory act. Any person who is an employe, as provided in subsection (a) of this section, who has not been so employed for a period of at least six months upon the effective date of this amendatory act shall become eligible to receive such amount upon the completion of such six-month period of employment.