(1)  A Head of Agency may, with the agreement in writing of an employee, transfer the employee to the Head's Agency from another Agency at a salary level not higher than the salary level of the employee before the transfer.

(2)  A Head of Agency may enter into an agreement in writing with an employee for the employee to transfer to the Head's Agency for a specified period.

(3)  A transfer under subsection (2) is to be made with the agreement of the Head of the Agency in which the employee was employed immediately before the transfer.

(4)  Subject to the Commissioner's Directions, an agreement under this section has effect according to its terms, by force of this section.