1-306. Exemption from certificate and examination requirements for certain persons. Persons who on July 1, 1951, held certified public accountant's certificates heretofore issued under the laws of this state shall not be required to secure additional certificates under this act or a Kansas certificate under this act, but shall otherwise be subject to all the provisions of this act and the act of which this section is amendatory. All such certificates heretofore issued shall, for all purposes, be considered to be Kansas certificates issued under and subject to the provisions of this act. Persons who have passed the certified public accountants' examination within the ten-year period immediately preceding the effective date of this act shall be considered to have satisfied the examination requirements set forth in this act and the act of which this section is amendatory and may apply for the Kansas certificate issued pursuant to this act.