VOLUME I Multinational Maritime Tactical Instructions and Procedures

MTP 1(D), Vol. I
Table 12-3. Commander’s Guide on Radiation Exposure State, Dose Levels, Probable
Tactical Effects, and Risk of Exposure Criteria
Total Cumulative Dose
(Centigrey)
RES
Category
Probable Initial Tactical
Effects After Exposure
Single Exposure Criteria
No Exposure — 0 R 0 None Negligible Risk — 50 Centigreys
Moderate Risk — 70 Centigreys
Emergency Risk — 150 Centigreys
Greater Than 0 But Not
Greater Than 70
R1
None to slight decrease in combat
effectiveness in up to 5 percent of
group.
The dose that, when added to the
group dose, will not exceed the
appropriate R 0 risk criteria.
Greater Than 70 But
Not Greater Than 150
R2
Decrease in combat effectiveness
in up to 25 percent of group. Up to
5 percent of group expected to
become combat ineffective. (See
Note 1.)
Any further exposure is considered
to exceed a negligible or moderate
risk.
Emergency Risk — The dose that,
when added to the group dose, will
not exceed the R 0 Emergency
Risk criteria.
Greater Than 150 R 3 Group probably not able to perform
complex tasks; sustained
effort hampered; more than 5 percent
of group expected to become
combat ineffective, increasing with
increased dose. (See Note 1.)
All further exposure will exceed the
Emergency Risk.
NOTES:
1. Combat ineffectiveness is taken to be the onset of severe radiation sickness.
2. Radiation exposure state (RES) categories may be useful in making the report required by Article 12025.
a. Light. All light, especially sunlight, giving ultraviolet rays, shortens the life of most organisms.
b. Humidity. Organisms vary in their response to humidity.
c. Temperature. Low temperature generally enhances the survival of micro-organisms; the
effective life of some micro-organisms diminishes with rising temperature. Temperature gradients
will also contribute to how quickly clouds of agents disperse.
12042 WIND
The speed and direction of the wind in relation to the target will be used to determine the release
point for an attack. Adverse wind conditions may cause postponement of an attack beyond acceptable
tactical limits.
12043 DETECTION METHODS
There is, at present, no means of detecting a biological attack. It is most important that medical personnel
are made aware of the threat so that they may adopt a suspicious outlook toward any signs that an attack
might have been made (e.g., a sudden widespread onset of an epidemic, rather than a slow build-up).
12-10 ORIGINAL