[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR62.25-25]

[Page 302-303]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 62_VITAL SYSTEM AUTOMATION--Table of Contents
 
   Subpart 62.25_General Requirements for All Automated Vital Systems
 
Sec. 62.25-25  Programable systems and devices.

    (a) Programable control or alarm system logic must not be altered 
after Design Verification testing without the approval of the cognizant 
Officer in Charge, Marine Inspection (OCMI). (See subpart 61.40 of this 
subchapter, Design Verification Tests). Safety control or

[[Page 303]]

automatic alarm systems must be provided with means, acceptable to the 
cognizant OCMI, to make sure setpoints remain within the safe operating 
range of the equipment.
    (b) Operating programs for microprocessor-based or computer-based 
vital control, alarm, and monitoring systems must be stored in non-
volatile memory and automatically operate on supply power resumption.
    (c) If a microprocessor-based or computer-based system serves both 
vital and non-vital systems, hardware and software priorities must favor 
the vital systems.
    (d) At least one copy of all required manuals, records, and 
instructions for automatic or remote control or monitoring systems 
required to be aboard the vessel must not be stored in electronic or 
magnetic memory.

[CGD 81-030, 53 FR 17838, May 18, 1988; 53 FR 19090, May 26, 1988]