Section 4

Section 4. Any officer or employe who has authorized the making of deductions from salary, wages or other compensation as aforesaid, may revoke the authority to make such deductions by delivering a written revocation to the officer or officers involved at least fifteen days before such revocation is to become effective; and thereupon, the officer or officers involved shall cease to make any such deduction from the salary, wages or other compensation of any such officer or employe.