In exercising its authority to acquire property by exchange, a department may accept real property and rights and interests therein, and may convey to the grantor of such real property or rights and interests therein any State-owned property under the jurisdiction of the department, but only with the favorable advice and recommendation of the interagency committee on natural resources. In effecting such exchanges, the department may also utilize for exchange purposes any privately owned land and rights and interests therein donated or made available to it for such purpose of an exchange. The land and rights and interests thus exchanged shall be approximately equal in fair market value, provided that the department may accept cash from or pay cash to the grantor in such an exchange, in order to equalize the value of the property and rights and interests therein being exchanged. Notwithstanding any other provisions of law and with the approval of the interagency committee on natural resources, State real property and rights and interests therein may, with the authorization of the department or other agency having custody thereof, be transferred without consideration, to the jurisdiction of a department designated under section 6302 of this title for use in carrying out the provisions of this chapter. (1969, No. 229 (Adj. Sess.), § 6.)