Section 4
SEC. 4. The radio apparatus shall be in charge of at least one operator licensed by the Bureau of Posts. The radio apparatus, the operator or operators in case the shipowner employs more than one, the regulation of their hours on duty, the sending and receiving of messages except in so far as regulated by the law or international agreement, shall be under the control of the master of the vessel; and any neglect on the part of such master to enforce the provisions of this section relating to the apparatus, operators and time on duty while at sea, shall be punished by a fine of not more than two hundred pesos, without prejudice to the liability contracted by him under other laws for the consequences of his neglect.