React to Chemical or
Biological Hazard/Attack
Conditions:
• You are given mission-oriented protective
posture (MOPP) gear, a protective mask,
individual decontaminating kits, and a
tactical environment in which CB weapons
have been or may be used by the enemy.
You are in MOPP1, and one or more of the
following automatic masking criteria
happens:
CONDITIONS CONT.
• A chemical alarm sounds.
• A positive reading is obtained on detector paper.
• Individuals exhibit symptoms of CB agent
poisoning.
• You observe a contamination marker.
• Your supervisor tells you to mask.
• You see personnel wearing protective masks.
• You observe other signs of a possible CB attack.
Standards:
• React to a chemical or biological hazard or
attack without becoming a casualty.
Identify chemical contamination markers
with 100 percent accuracy, and notify
supervisor. Start steps to decontaminate
yourself within 1 minute of finding
chemical contamination. Decontaminate
your individual equipment after you
completely decontaminate yourself.
Performance Steps
• 1. Identify the CB hazard automatic
masking criteria.
– a.
Don your protective mask when there
is a high probability of a chemical attack,
when-
DON MASK WHEN:
(1) A chemical alarm sounds.
(2) A positive reading is obtained on detector
paper.
(3) Individuals exhibit symptoms of CB agent
poisoning.
(4) You observe a contamination marker.
(5) Your supervisor tells you to mask.
(6) You see personnel wearing protective masks.
(7) You observe other signs of a possible CB
attack.
NBC CONT.
b. Respond to the commander's policy of
automatic masking.
Note. Commanders at all levels may establish
a modified policy when chemical weapons
have been employed by designating
additional events as automatic masking
criteria.
NBC CONT.
• 2. Protect yourself from CB contamination
using your assigned protective mask
without fastening the hood.
Note. The mask gives immediate protection
against inhalation of agent vapors. Do not
fasten the hood. Go to the next step
immediately.
REMEMBER: STOP BREATHING FIRST!!!!
NBC CONT.
3.
Give the alarm.
– a.
Yell "GAS.“
– b. Give the appropriate hand-and-arm
signal.
4. Take cover to reduce exposure, using
whatever means is readily available.
5. Decontaminate exposed skin using the
individual decontaminating kit, as necessary.
NBC CONT.
6. Assume MOPP4. Cover all your skin
(your head and shoulders are already
protected by the mask and the
overgarment).
a. Put on the gloves with liners.
b. Zip and fasten the overgarment
jacket.
c. Secure the hood, then secure the
overgarment to increase protection.
d. Put on the overboots.
NBC CONT.
Note. Combat boots provide protection but
should be covered because they absorb
chemicals. It takes a long time to put on
the overboots, so put them on last in an
emergency.
NBC CONT.
7. Decontaminate personal equipment
using the individual decontaminating kit
as necessary.
8. Notify your supervisor of any CB hazard
markers or indicators.
9. Continue the mission.
NBC CONT.
Note. After assuming MOPP4 and performing all the
tasks according to the unit SOP perform the following
actions:
1. Use all means of CB detection to check your
surrounding area for the presence of contamination.
2. Contact higher headquarters (HQ) if no
contamination is found or if you determine the attack
was non-CB.
3. Await further guidance. (Higher HQ contacts all
adjacent/attached units to check the status of CB
contamination in their areas. If all units report the
absence of contamination, the information is reported
up the chain of command.)
4. Annotate the above actions on your duty log
(Department of the Army [DA] Form 1594).
References Required
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DA Form 1594
FM 3-5
FM 3-4
TM 3-4230-229-10
TM 3-4230-235-10