[355-3, 134; Comp., 1524.] [2241-1.] [520-35.] ( c ) The prohibition and suppression of unnecessary noises, such as explosions of gasoline engines, the excessive sounding of whistles or sirens, and other needless and disturbing sounds made by water craft in the ports of the Philippine Islands or in parts  of rivers included in such ports. ( d ) The exclusion, if the conditions of traffic should at any time so require, of vessels of more than one hundred and fifty tons from entering, berthing, or mooring in the Pasig river for any other purpose than to obtain necessary repairs not procurable i n Manila Bay. ( e ) The fixing of the number and classes of marine officers to be carried on Philippine vessels and the licensing of such officers; the determination of the qualifications of pilots, the regulation of their service, and the fixing of the fees which they may  charge. (f) The supervision and control over the entrance and clearance of vessels, whether engaged in domestic or foreign commerce; the inspection of Philippine vessels, and supervision over the safety and sanitation of such vessels. ( g ) The enforcement of the customs laws and other laws of the United States or Philippine Islands relating to customs, commerce, navigation, immigration, and Chinese exclusion in and for said Islands, and the enforcement of the lawful quarantine regulations f or vessels entering Philippine ports. ( h ) The collecting or securing of the lawful revenues from dutiable merchandise and from tonnage dues and wharf charges; the collection or securing of all other dues, fees, fines, and penalties accruing under the customs laws; and the prevention and suppre ssion [1610-1.] [355-3.] [355-3.] 388 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011