149.675—What are the requirements for the public address system?
        
        (a) 
         For a manned deepwater port, each pumping platform complex must have a public address system operable from two locations on the complex.
    
    
        
        (b) 
         For an unmanned deepwater port, the vessel master must provide a working public address system on a vessel while it is moored or otherwise connected to the port.