MM4632
COMPUTING CONTROLLED SUPPLY RATE
The controlled supply rate (CSR) is the rate of ammunition consumption that can be supported,
considering the ammunition, transportation, and facilities available for a given period of time. The CSR
is expressed in rounds per weapon per day or for bulk-allocated items in other units of measure such
as per 1,000 individuals. The CSR can be expressed as a lump sum allocation for a specific unit for a
definite period of time.
The CSR is based upon the availability of ammunition along with the ability to move or locate the
munition items to desired locations within required time frames.
The key to understanding the RSR and CSR relationship is--commanders of tactical units submit
requirements to support mission operations in the form of an RSR. These requirements are analyzed
by the munitions manager to determined if the requirement can be supported by the on-hand stockpile.
If the requirement can be supported, the RSR becomes the CSR. If the requirement cannot be
supported then a CSR must be established.
Essential elements of information for CSR computation are as follows:
Stockage Objective. A specific quantity of supplies authorized to be on hand. Stockage objectives
(S/O) are computed for a predetermined number of days based on order and shipping time from the
National Inventory Control Point (NICP).
Safety Level. A predetermined amount of ammunition, normally computed as DOS, representing a
percentage of the stockage objective and is based on order and shipping time from the NICP.
When computing the necessity for CSRs, the safety level (S/L,) is the point that managers will not
allow RSRs to take the stockpile below.
On-Hand Assets. On-hand assets (O/H) represent the current stockage position for separate items
of ammunition.
The formula for computing the CSR is O/H subtracted from S/L divided by WD. Then, this quantity
is divided by the DOS to equal the CSR rounds per weapons per day (O/H - S/L WD DOS = rds per
wpn per day).
Now try to work the following situation.
The Situation. The following exist in an active theater for 105mm ammunition. Using the
formula, determine if a CSR is necessary and if so, what the CSR would be.
S/O = 100,000 rounds at 60 DOS.
S/L = 50,000 rounds at 30 DOS.
O/H = 92,000 rounds
Consumption for the next 30 days, based on RSRs submitted, is 52,000 rounds.
Weapons density = 160
On the 27th day 45,000 rounds will be received from CONUS.
We determine the amount to be 45,182.
The correct amount is figured like this:
52,000 rounds 30 days = 1,734 rounds (one day consumption)
1,734 rounds x 27 days = 46,818 rounds (expended in 27 days)
92,000 rounds - 46,818 rounds = 45,182 (On hand on 27th Day
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