120.312—Power sources on vessels of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers.
         A vessel of more than 19.8 meters (65 feet) in length carrying more than 600 passengers or with overnight accommodations for more than 49 passengers must have:
    
    
    
        
        (b) 
         An electrical power system that complies with the requirements of  §§ 111.10-4, 111.10-5, 111.10-9, 111.10-11 in subchapter J of this chapter;
    
    
        
        (c) 
         A final emergency power source, as defined by  § 112.01-20 in subchapter J of this chapter, with sufficient capacity to power the loads listed in  § 112.15-5 in subchapter J of this chapter for three hours; and
    
    
    [CGD 85-080, 61 FR 928, Jan. 10, 1996, as amended at 62 FR 51352, Sept. 30, 1997]