engineer  officer  to  an  assistant.  Some  of  these duties  include  the  followmg: Develop  a  department  training  program  in support  of  the  training  objectives  of  the ship. Carry  out  approved  training  plans  and policies  within  the  department. Coordinate and assist in the administration of  division  training  programs  within  the department.  This  includes  supervision  of the preparation of training materials and review of curricula, training courses, and lesson plans. It also includes assisting in the  selection  and  training  of  instructors, observation of instruction given at drills, on watch, on station, and in the classroom. It  further  includes  procurement  of  required training aids and devices. Maintain  department  training  records  and training reports. Disseminate  information  concerning  the availability  of  fleet  and  service  schools. Requisition  training  supplies  and materials. FIRE MARSHAL.—  The fire marshal works under  the  engineer  officer  and  the  DCA and  is  responsible  for  the  maintenance  and readiness  of  the  ship’s  fire-fighting  equipment. The  fire  marshal  is  also  responsible  for  the prevention and elimination of fire hazards on the ship. GAS-FREE  ENGINEER.—  The duties and responsibilities  of  the  gas-free  engineer  are described  in  Naval   Ships’   Technical   Manual, chapter 074, volume 3,  “Gas-Free   Engineering.” Briefly, the gas-free engineer tests and analyzes the  air  in  sealed  compartments  or  voids  that are  being  opened  for  inspection.  The  engineer determines   whether   such   spaces   are   safe   for personnel  to  enter  without  danger  of  poisoning or   suffocation.   The   engineer   also   determines whether it is safe to perform welding or cutting within or in the vicinity of such spaces. Such hot work  is  dangerous  and  can  cause  fires  and explosions. MAIN  PROPULSION  ASSISTANT.—  The responsibilities  of  the  MPA  are  as  follows: Operation,  care,  and  maintenance  of  the ship’s  propulsion  machinery  and  related auxiliaries Care,  stowage,   and   use   of   fuels   and lubricating  oils Preparation  and  care  of  the  Engineering Log  and  the  Engineer’s  Bell  Book Preparation  of  operation  and  maintenance records  and  procedures The   MPA   also   has   the   responsibility   as division   officer   for   the   boiler   and   machinery divisions.  These  divisions  are  discussed  in  the following   paragraphs. Boiler (B) Division.—  The B division operates the boilers and the fireroom auxiliary machinery. If  you  are  assigned  to  this  division,  your  work station may be in a fireroom. The firerooms are usually  located  midships  on  the  lower  level.  There may be as many as eight firerooms, depending on the   size   and   type   of   ship.   Ships   with   only one  fireroom  will  have  two  boilers.  They  are installed either facing each other or side by side. The boilers are arranged so any number of them supply steam to the ship’s engines. The firerooms are separated by watertight bulkheads. This allows any fireroom to be sealed off in case of a casualty. The  ship  can  operate  on  the  remaining  boilers. On  your  first  trip  through  the  fireroom,  you will notice many sizes of pipes and valves. These lines (pipes) carry steam, water, fuel oil, and air. You will become familiar with a few of them at a time. Gradually, you will learn all their purposes and  functions. The lines that carry steam or water are covered by insulation and lagging. This is done to ensure personnel  safety  and  to  prevent  heat  loss  and condensation. Stencils on the lines show the fluid carried  and  the  direction  of  flow. During your training, you will trace these lines from  one  unit  to  another  throughout  each  system. The ship’s blueprints and drawings will help you trace out systems in the engineering plant. Machinery (M) Division.— The M division is responsible  for  the  safe  operation  of  the  main engines, reduction gears, shafting, bearings, and all associated auxiliary machinery that supports 1-3