may be prescribed relative  thereto. Female inspectors may be employed for the examination and search of persons of their own sex. [355-325.] SECTION  1490 . Unlawful Navigation of Unregistered Vessel . — When any vessel shall be unlawfully used or navigated in Philippine waters without having been first duly registered in the Bureau of Customs, or application therefor made as required by law, such  vessel shall be fined in a sum not exceeding double the tonnage dues, or if the vessel is not subject to tonnage dues, in a sum not exceeding twenty pesos. IEAHca ARTICLE  XVII Administrative Fines and Forfeitures SECTION  1491 . Vessel Engaging in Coastwise Trade Without License.  — Any vessel engaging in the coastwise trade, without having procured the requisite license therefor, shall, if laden with merchandise of the growth, product, and manufacture of the Philippi ne Islands only, or in ballast, be fined in a sum not exceeding one thousand pesos. [355-150; 864-11.] SECTION  1492 . Vessel Navigating without Complement of Officers . — If any Philippine vessel shall navigate without its full complement of duly licensed officers, the same not being due to an emergency beyond control of the master, owner, or agent, such vess el shall be fined, not oftener than once in thirty days, in a sum not exceeding one thousand pesos. [1616-1.] SECTION  1493 . Vessel Entering Closed Port . — Any vessel entering a place closed to the coastwise trade by proclamation of the Governor-General, not being impelled thereto by stress of weather or other necessity, shall be fined in a sum not exceeding one th ousand pesos. [1341-1.] SECTION  1494 . Vessel Engaging in Bay and River Business without License . — A vessel engaging in the business of towing or of transporting passengers or freight in any harbor, bay, river, or any inland water navigable from the sea, without having procured t he requisite license therefor, shall be fined in a 435 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011