Section 3
SEC. 3. The general duties, powers, and jurisdiction of the Customs Service shall embrace: 1. The documenting of vessels built or owned in the Philippine Islands, in proof of nationality and ownership, subject to the regulations hereinafter prescribed. 2. The maintenance of the laws and treaties of the United States concerning commercial intercourse. 3. The exclusion of foreign vessels from the coastwise trade. 4. The entry and clearance of vessels. 5. The shipping, protection, and care of merchant seamen. 6. The collection or securing of the lawful revenue from importations of dutiable merchandise and from the exportation of dutiable merchandise and from tonnage dues, wharf charges, and such others as may, from time to time, be duly established. 7. The suppression and prevention of smuggling and other frauds on the customs revenue. 8. The collection of the duties, dues, fees, fines, and penalties, accruing under the laws relating to customs, navigation, and commerce, by sea. 9. The execution of the laws relating to immigration. 10. The enforcement of such regulation of commerce, foreign and coastwise, as shall be established by competent authority. 11. The regulation of the carriage of passengers by water and the licensing of vessels therefor. 12. The compilation of the returns of the commerce, navigation, and immigration of the Islands. 13. The recording of all sales or transfers of vessels belonging to the port and of all vessels built within the port.