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maritime DC & PPE Information Center


Damage Control Marking System


The ability to rapidly respond to shipboard casualties is critical to minimizing damage. A key piece to the response is the ability to identify important information while egressing from the scene and also while the damage control organization responds to the incident. The Damage Control Marking System is one of the ship's passive damage control features. Much of the information can be found in NSTM 079 Volume 2. It is extremely important to make sure that the surface area is properly cleaned and prepared prior to application to ensure that the signs adhere properly to the surface area. The different catagories of the Damage Control Marking System are listed below.

See NAVSEA Shipboard Marking Program Ordering Information.

  • PhotoLum Marking - This material is used for damage control safety. It helps personnel egress to safe areas. PhotoLum marking is also on the most important damage control pieces of gear, such as OBAs and SCBA.

  • DC Retroreflective Diamond Grade Marking - This reflective material can be seen at different angles. It helps the DC repair party identify key pieces of information and equipment while responding to the casualty. As these signs are hit with a flash light beam they reflect and alert personnel to key information. Some of these signs are totally retroreflective and others use retroreflective letters on PhotoLum background signs.

  • Escape Trunk Marking - Reflective material used to identify the depth of water from flooding in engineering spaces through escape trunks. This is very helpful to investigators to quickly determine if the water level is rising or falling and also determine the amount of water in the engineering space in order to do stability calulations.

  • DC Pipe Marking - This material is used to replace stenciling. The idea is to apply stickers that have the system abbreviation and also same colors as the system's handwheels as described in NSTM 505. This also matches the symbology used in the DC Casualty Flag kit and in DCAMS. Seeing the same abbreviation and color coding over and over again will help personnel rapidly respond to isolate and reconfigure systems. It will also save time in maintenance and identification of piping runs on the ship.

For more information, see the Index.