Normally,   the   auxiliaries   (A)   and   repair   (R) division officers are responsible under the DCA. But the DCA performs those duties in ships where there are not enough officers to fill the billets. The DCA now is responsible for two functions that were formerly collateral duties. They are chemical, biological,  and  radiation  (CBR)  defense  officer  and gas-free engines. As the CBR defense officer, the DCA should be a graduate  of  a  comprehensive  CBR  defense  course.  He acts as technical advisor to the CO and the engineer officer  in  matters  concerning  CBR  defense.  He  assists division  officers  in  the  CBR  warfare  training  of personnel  in  the  ship  and  is  responsible  for  the indoctrination and training of the damage control battle organization  in  this  type  of  warfare. As  gas-free  engineer,  the  DCA  must  organize  and administer a training program to inform all hands of the hazards  involved  in  entering  closed  or  poorly  ventilated spaces  and  in  welding  and  allied  operations.  He  is responsible for the posting of a warning of such hazards in spaces where they exist. He is authorized to order personnel  out  of  a  compartment  immediately  or  to suspend work whenever an unsafe condition exists. He must immediately notify the CO, engineer officer, or other responsible authority of any such work stoppage and the reason for it. THE ELECTRICAL OFFICER.— The  electrical officer  is  responsible  for  the  operation,  care,  and maintenance of the ship’s electric power generators and distribution  systems,  interior  communications equipment  and  systems,  gyrocompass  equipment  and systems,  degaussing  equipment  and  associated  systems, dead reckoning analyzer and associated equipment, and small boat electrical systems. He is also responsible for the  maintenance  of  all  other  electrical  and  electronic equipment, machinery, and systems not specifically assigned to another division or department; and the preparation,  maintenance,  and  submission  of  logs, records, and reports required in connection with his assigned duties. The DCA serves as the electrical officer when the ship does not have enough officers to fill the billet. The electrical officer is usually assigned collateral duty  as  SITE  TV  officer.  In  this  capacity,  he  is responsible   for   the   procurement,   storage,   and scheduling   of   closed   circuit   television   (CCTV) programs; for training on CCTV systems and associated equipment; and for the preparation, maintenance, and submission of the required logs, records, and reports for motion  picture  programs  and  equipment. THE   ENGINEERING   ADMINISTRATIVE ASSISTANT.—  The   engineering   administrative assistant  is  an  aide  to  the  engineer  officer.  The  MPA assumes these duties when the ship does not have enough  officers  to  fill  the  billet.  The  engineering administrative   assistant   has   the   following responsibilities: l Operation of the logroom, maintenance of the equipment  assigned,  and  the  maintenance  and preservation  of  the  space  assigned .   Assignment,   training,   supervision,   and evaluation  of  the  logroom  Yeomen  (YN)  and  other enlisted  personnel  assigned  to  the  logroom l  Maintenance  of  the  engineering  department watch  bills The engineering administrative assistant screens all incoming  engineering  department  correspondence, initiates required action (when appropriate), and checks the  accuracy  of  all  correspondence  leaving  the department.  He  helps  the  engineer  officer  implement directives from higher authority that pertain to the engineering   department.   He   also   helps   prepare engineering  department  directives  and  disseminates them after the engineer officer releases them. The  engineering  administrative  assistant  must supervise the logroom because it affects each of the engineering  divisions  and  reflects  the  effectiveness  of the  engineering  department.  He  must  properly  store blueprints,  technical  manuals,  and  other  publications and index them so they can be easily located. He must establish methods to account for the publications that have been removed from the legroom and keep their removal   to   a   minimum.   He   must   hold   periodic inventories so missing items can be promptly reordered. He must enter changes as soon as possible to make sure the  publications  are  kept  up  to  date  and  file  logs, records, and reports for easy reference. To avoid clutter in the logroom, he must establish a plan for the prompt disposition of logs, records, and reports according to current instructions. SPECIAL ASSISTANTS.— Special assistants to the  engineer  officer  include  the  engineering  training officer, the fire marshal, and the 3-M assistant. The  Engineering  Training  Officer.—   The engineering  training  officer  is  an  assistant  to  the engineer officer for the administration and coordination of  the  department’s  training  program.  The  duties, 1-10