3. PROBABLE. Statements of intent to employ
CBR warfare, directed at U.S. forces or allies, changes in
political or military posture of an adversary possessing
CBR capabilities, or use of CBR warfare within the
OPAREA present a chance of probable involvement in a
CBR environment. This threat level requires an estimate
of the earliest time the CBR environment will be
encountered. This estimate must be based on the strike
ranges of delivery systems and the time it takes the strike
to arrive at the nearest range limits. Implementation of
MOPP-3 countermeasures is indicated.
4. IMMINENT. Confirmation of increased activity
involving delivery systems, recognized platform attack
patterns, electronic or visual indication of employment of
delivery systems, or the immediate proximity of known
CBR hazard areas present an imminent danger of
contamination and/or casualties. Implementation of
MOPP-4 countermeasures is essential.
RISK MANAGEMENT AND
IMPLEMENTATION OF MOPP
The decision to initiate or upgrade the ships MOPP
begins with determining the threat level, ships mission,
and corresponding MOPP-level countermeasures that
provide the minimum acceptable degree of risk. An
increase in the threat level does not necessarily justify
immediate execution of all countermeasures included in
the corresponding MOPP level.
The next step is to determine the time at which the
countermeasures comprising that MOPP level should
begin. The time required to take countermeasures must
be compared to the time remaining until either the
threat level increases or the risk becomes
unacceptable. Waiting too long to start
countermeasures increases the risk to the ships
mission because of the risk to personnel survivability.
Alternately, starting countermeasures too early will
degrade the crews performance for sustained
operations in the CBR environment and will ultimately
limit the ships ability to complete the mission. All
countermeasures must be in effect immediately before
the ship becomes involved in a CBR environment.
Immediately following the attack, an assessment
of the ships involvement in the CBR hazard is required
to determine which countermeasures should remain in
effect to enhance survivability and sustain operation.
Frequent reassessments should be made to identify the
earliest practical time(s) to secure the countermeasures
and upgrade crew performance for optimum mission
MOPP Level-1 (Suspected Threat) Protection
During MOPP level-1 the following actions must
1. Individual protection Issue the following
individual protective equipment and medical
supply items to shipboard personnel and
maintain them at respective battle stations:
Protective masks (fitted for immediate use)
- Protective masks (with new, unopened
- Chemical protective overgarments
- Chemical protective overboots
- Chemical protective glove set
- Personnel decontamination kit
Medical supply items
- Atropine auto-injectors (3)
- Auto-injectors (2)
- Pyridostigmine pretreatment tablets (21)
Biological protection Consists of the same
protective equipment required for chemical
protection, minus the medical items. Chemical
threat is assumed to be worst case, unless
reliable intelligence indicates otherwise.
The risk of a CBR threat can be categorized
into how many levels of probability?
The term MOPP stands for Mission
Organization Protective Plan.