Chap. 332. An Act providing that certain new or duplicate learner's permits, licenses and certificates of registration of motor vehicles shall be invalid. Be it enacted, etc., as follows: Section 22 of chapter 90 of the General Laws is hereby amended by adding the following paragraph: — If during the period of any such suspension or revocation and prior to its termination by the registrar a new or duplicate learner's permit, license or certificate of registration, or any renewal thereof, is issued, such learner's permit, license or certificate of registration shall be void and of no effect. Approved May 24, 1968.