-Select Rank- 1ST CLASS ENGINE DRIVER 2ND CLASS ENGINE DRIVER 2ND ENGINEER 2ND OFFICER 3RD ENGINEER 3RD OFFICER 4TH ENGINEER ACCOUNTANT ADMIN OFFICER BARGE FOREMAN BARGE SUPERVISOR BOSUN CHIEF COOK CHIEF ENGINEER CHIEF OFFICER CRANE OPERATOR CREW MANAGER DECK CADET DECK FITTER DECK FOREMAN DIESEL MECHANIC DREDGE MASTER Dredger Operator ELECTRICAL OFFICER ENGINE FITTER FIRST CLASS INLAND MASTER GAS ENGINEER GS HELPER Internal Auditor MASTER MECHANICAL ENGINEER MEDIC MOTORMAN OILER OS OWNER REPRESENTATIVE PIPE FABRICATOR PIPE FITTER PIPE OPERATOR PUMPMAN RADIO OFFICER RIG HELPER RIG MOTOR MAN RIGGER RIGGING SUPERVISOR ROUSTABOUT SAFETY OFFICER SECOND CLASS INLAND MASTER SENIOR MECHANIC STORE KEEPER Superintendent Trainee Pumpman TUBE OPERATOR TUG MASTER TURNER FITTER UNIT MANAGER WIPER