MEMORANDUM FOR A1 - Air Force E-Publishing
MEMORANDUM FOR A1 - Air Force E-Publishing
MEMORANDUM FOR A1 - Air Force E-Publishing
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AFI91-202 5 AUGUST 2011 133<br />
Attachment 8<br />
ABATEMENT PRIORITY NUMBER<br />
A8.1. The abatement priority number (APN) is a two-part code: the RAC and the cost<br />
effectiveness index (CEI). CEI measures cost effectiveness of a hazard abatement project and<br />
represents a ratio of the project cost and its potential effectiveness. The APN will be used to<br />
determine the relative priority of abatement actions. Use the APN in establishing funding<br />
priorities for hazard abatement projects during the budgetary cycle. Compute APN:<br />
A8.1.1. Step 1. Determine RAC from Table A7.1, based on mishap severity and probability<br />
of occurrence.<br />
A8.1.2. Step 2. Determine the severity probability multiplier (M) from the matrix in Table<br />
A8.1, using the same severity and probability used to determine the RAC.<br />
Severity Mishap Probability<br />
A B C D<br />
I 188 53 21 7<br />
II 53 21 7 2<br />
III 21 7 2 1<br />
IV 7 2 1 0.26<br />
Probability Multiplier Matrix.<br />
NOTE: The multipliers in table represent a proportional distribution of the severity and<br />
frequency of mishaps.<br />
A8.1.3. Step 3. Determine exposure (E), or the average number of personnel exposed daily to<br />
the hazard during the course of the year.<br />
Tab<br />
le<br />
A8.<br />
1.<br />
Sev<br />
erit<br />
y<br />
and<br />
A8.1.4. Step 4. Determine the total abatement project cost (C). If actual costs are not known,<br />
use best available estimate.<br />
A8.1.5. Step 5. Compute the CEI by dividing the C for abatement by the product of M and<br />
E, or CEI = C/ (M) (E).<br />
A8.1.6. Step 6. Determine APN by listing the RAC followed by the CEI in parenthesis, or<br />
APN = RAC (CEI).<br />
A8.1.7. Step 7. Determine relative priority of abatement projects by comparing the CEI of<br />
projects within identical RACs. NOTE: The lower the CEI, the higher its relative priority<br />
within the same RAC.<br />
A8.2. To use APNs to establish a priority list of projects, follow these steps:<br />
A8.2.1. Step 1. Determine RAC. Assumptions: Given a hazard that will probably occur in<br />
time (Probability B) and would result in a permanent partial disabling injury (Severity II) if it<br />
resulted in a mishap. Therefore, the assigned RAC from Table A8.1 would be 2.<br />
A8.2.2. Step 2. Determine multiplier (M). Plot mishap probability (B) versus hazard severity<br />
(II) on Table A7.1 to obtain a multiplier of 21.
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