US · guidance
BOP Program Statement 8331.03 § 6
ANNUAL INVENTORY ACCURACY
Accurate inventory records are integral to a good material requirements planning system and
ensure the correct valuation of physical inventories and their presentation on the Corporation’s
financial statements. It is FPI’s goal to have a 95 percent accuracy rate or greater in its raw
materials, work in process, sub-assembly, and finished goods inventories.
Due to the nature of shop stock inventory, the requirement for 95 percent accuracy is not
applicable; however, every effort must be made to ensure that inventory differences are
investigated to maximize the accuracy of shop stock inventory.
To achieve and maintain at least 95 percent accuracy in raw materials, sub-assemblies, and
finished goods inventories, the AW/SOI at each location first develops and approves an annual
Inventory Accuracy Plan, including:
■ Classification of inventory.
■ Assignment of accountability.
■ Determination of initial inventory accuracy rate.
■ Procedures for obtaining and maintaining 95 percent accuracy.
■ Annual Inventory Schedule
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The AW/SOI forwards a copy of the plan to the Field Financial Administrator (FFA) by October
31 each year.
a. Classification of Raw Material, Finished Goods, and Sub-Assembly Inventories. The
AW/SOI ensures that inventory items are classified according to the importance and feasibility of
controlling each item’s quantity and movement. Each identified class of inventory items is
assigned a deviation tolerance level. Physical inventory count differences of items that fall within
specified tolerance levels are considered 100 percent accurate. However, inventory records are
adjusted for any of these differences, even though they are considered 100 percent accurate for
accuracy plan purposes.
The classes and tolerance levels used when classifying inventory:
Class I. Large Part, Easily Controlled 0%
These are large in individual size, issued infrequently, and easily controlled. A 55 -gallon drum of
glue, where the unit of issue is “drum,” is an example.
Class II. Hand Count 0-1%
Quantities are maintained by hand count. Plywood or metal sheets are examples.
Class III. Small Part, Scale Counted 0-2%
High volumes are regularly received and issued based upon package weights or scale count.
Rivets, crimps, or buttons are examples. Note: Some small parts may be of such high dollar
value that a 0% tolerance level is required.
b. Accountability. The AW/SOI delegate s responsibility and authority for inventory accuracy
to one or more of the following staff: prime business manager, operational accountant, and the
remote accountant, based on the supervisory structure used by the business group and at the
factory location. The prime business manager and the operational accountant are responsible for
the inventory accuracy of raw material, sub-assembly, and finished goods inventories maintained
in the warehouse. The factory manager is responsible for the inventory accuracy of shop stock
(raw material), work in process, and sub-assembly inventories on the factory floor.
c. Accuracy Rate. The annual initial baseline inventory accuracy rate is set through an analysis
of the last two completed “cycle” counts (see Section 9). The accuracy level is determined by
dividing the number of correct counts by the total number of item counts conducted for each class
of inventory.
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Example: 29 raw material items with correct counts
30 raw material items, with other than zero stock, counted
29/30 = 97% accuracy rate for raw materials.
The purpose of the initial inventory accuracy rate is to determine whether a 95 percent accuracy
rate exists. If less than a 95 percent rate exists, locations begin control group counts per Section
13 of this Program Statement. If no historical data to support cycle counts exist, staff randomly
select 10 percent of items with quantities on hand for a test count. Upon completing the test
count, the location compares test counts of actual inventory with inventory records in the financial
information system.
d. Inventory Schedule. The AW/SOI submit s to the FFA an inventory schedule no later than
October 31 each fiscal year. The schedule list s the type of inventory and the month/week/year
(e.g. week of March 18, 20XX) in which the physical inventory is scheduled. Changes to the
schedule will require notification to the FFA. A copy of the inventory schedule is kept on file.
Types of inventories to be scheduled are:
■ Raw materials and supplies.
■ Work in process.
■ Sub assemblies.
■ Finished goods.
■ Fixed Assets.
Work in process inventories are done during August each fiscal year. Ideally, the inventory
should be conducted in the middle of the month to avoid conflict with the monthly close-out.
History
PS 8331.03 dated 2015-03-19
Provenance
- Source
- bop.gov
- Retrieved
- 2026-09-20
- Edition
- bop-ps-2026-09-20
- Content hash
cc4e6ca10c04ab00c5eb51bc09f1144005502fa45d39d990ae953cc63b23b0b5
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