Biological:
—Don chemical protective overgarments
(jumper and trousers) with hood
down.
—Don chemical protective overboots.
—Stow personnel decontamination kit
in mask carrier.
Radiological:
—Don battle dress.
—Issue individual dosimeters and dose
indicators (DT-60, etc.).
2. Collective Activities
Direct the ship to general quarters
(readiness Condition I maybe relaxed
and readiness Condition II set at CO’s
discretion).
Fill pre-positioned canteens with
potable water.
Assign personnel to decontamination
stat ions and assure operability y,
Post CBR detection and monitoring
teams equipped with required instru-
ments and supplies designated by the
ship’s CBR defense bill for readiness
Condition I or II.
Strike below, as appropriate, vulnerable
flammable and absorbent weather-deck
materials.
Set material condition ZEBRA.
Limit weather-deck activities to essen-
tial functions.
Post and monitor installed CBR detec-
tion equipment and materials as desig-
nated by the ship’s CBR defense bill.
3. Shipboard systems
Activate countermeasures washdown
system intermittently.
Ensure collective protection systems are
fully operational and access/exit proce-
dures are in effect.
MOPP Level-4
(Imminent Threat) Protection
During MOPP level-4 the following actions
must be taken:
1. Individual Protection
• For all CBR threats, don protective
mask.
• Chemical/Biological:
—Secure jumper hood over head and
around mask.
—Don chemical protective glove set.
• Radiological: Don battle dress.
2. Collective Activities.
Direct the ship to general quarters (if
not previously in effect).
Implement mandatory water-drinking
regimen.
Initiate continuous monitoring and
operation of detection equipment.
Set Circle WILLIAM on ventilation
systems (except Collective Protection
System [CPS]).
Radiological: Secure sea chests for
underwater nuclear detonations, as
directed by the Ship’s CBR defense bill.
Prepare NBC Warning and Reporting
system (NBCWRS) messages for
transmission.
3. Shipboard systems—Activate counter-
measures washdown system to operate
continuously.
DUTIES OF THE DIVISION
DAMAGE CONTROL PETTY
OFFICER
Damage control petty officers (DCPOs)
normally serve for a period of 6 months. They
are required to check with the fire marshal and
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