Section 21
SEC. 21. The requirements of this Act for entrance or promotion by competitive examination shall not apply to the office of cashier of the Collector of Customs for the Islands, to the Captain of the Port at Manila, to the collector of customs at Iloilo, and the collector of customs at Cebu, until one year after the date when the Board shall make the certificate prescribed in the preceding section, after which vacancies in such offices shall be filled by promotion by competitive examination as in other cases.