sum not exceeding five hundred pesos. [Comp., 1524.] SECTION  1495 . Vessel Departing Before Entry Made . — If a vessel arriving within the limits of a collection district from a foreign port shall depart or attempt to depart before entry shall be made, the same not being due to stress of weather, pursuit or du ress of enemies, or other necessity, such vessel shall be fined in a sum not exceeding one thousand pesos. [355-85, 94.] SECTION  1496 . Obstruction of Boarding Officer . — If the master of any vessel arriving at a Philippine port shall obstruct or hinder any officer in lawfully going on board such vessel for the purpose of carrying into effect any of the customs laws, or shall  intentionally cause any such officer to be so obstructed or hindered, the vessel shall be fined in a sum not exceeding one thousand pesos. [355-328.] SECTION  1497 . Unlawful Boarding or Leaving of Vessel . — If the master of any vessel engaged in the foreign trade, upon arriving at a Philippine port, shall permit any person unlawfully to board or leave the vessel without the permission of the customs offi cer in charge, such vessel shall be fined in a sum not exceeding two hundred pesos. Any vessel which goes alongside of such arriving vessel and puts any person aboard thereof or takes any person therefrom, except as allowed by law or regulation, shall be subject to the same fine. [1235-18.] SECTION  1498 . Failure to Deliver or Receive Mail.  — If the master of a vessel arriving at a Philippine port shall fail or refuse to deliver to the postmaster of the nearest post office, as by law or contract required, all mail matter on board such vessel a nd destined for the particular port, the vessel shall be fined in a sum not exceeding two hundred pesos. [Comp., 1473.] When any vessel which is required by law or contract to carry mail matter departs from a port or place where mail should be received, without giving the postmaster or other postal official a reasonable opportunity to deliver to the vessel, or its proper of ficer, or agent, any mail matter addressed to or destined for the port 436 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011