COBRA Algorithm Manual Page: 92 of 106
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Draft Deliberative Document - For Discussion Purposes Only - Do Not Release Under FOIA
Sustainment Costs, Savings, and Net Costs [Overhead]
The Sustainment Non-Payroll Budget for a base is defined as the Total Sustainment Budget
minus the Sustainment Payroll Budget (both in Screen Four - Base Information (Static)), and the Non-
Payroll Factor is defined as the Sustainment Non-Payroll Budget divided by the Total Sustainment
Sustainment Savings will be realized at each installation which is closing, deactivating, or
At a closing or deactivating base, Sustainment Savings from the base's Close Year (Screen One
- General Scenario) through 2011 are equal to the 85% of the base's Sustainment Non-Payroll Budget.
After 2011, recurring through the Beyond years, the Sustainment Savings are equal to the base's entire
Sustainment Non-Payroll Budget.
At a downsizing base (defined as one with a positive value for Facilities Shutdown in Screen
Five - Base Information (Dynamic)), Sustainment Savings in a given year are equal to the quotient of the
Facilities Shutdown (Screen Five - Base Information (Dynamic)) divided by the Starting Facilities
(Screen Four - Base Information (Static)), times the Sustainment Non-Payroll Budget times the
Shutdown Cumulative Time Phasing. The year 6 value recurs throughout the Beyond years. Note that
a downsizing base can never save more than 85% of its Sustainment Non-Payroll Budget.
Sustainment Costs will be realized at each base with new construction, and also at deactivating
bases where an Enclave is defined.
Sustainment Cost in a given year for new construction is equal to sum, for all projects, of New
MilCon (Screen Seven - Base Information (Military Construction) times the Area Cost Factor (Screen
Four - Base Information (Static) times the Cumulative Milcon Percentage times the SSR (Standard
Factors - Facilities Tab; the Base Service in Screen Four - Base Information (Static) determines which
SSR value to use) times the FAC's Sustainment Cost Factor times the Non-Payroll Factor. The year 6
value recurs into the Beyond years.
At a deactivating base with an Enclave defined (Screen Eight - Base Information (Enclave)),
Recapitalization Cost is equal to the sum, for all projects, of Quantity (Screen Eight - Base Information
(Enclave)) times the Area Cost Factor (Screen Four - Base Information (Static)) times the SSR
(Standard Factors - Facilities Tab; the Base Service in Screen Four - Base Information (Static)
determines which SSR value to use) times the FAC's Sustainment Cost Factor times the Non-Payroll
Factor. Note that the Sustainment Cost for an Enclave is only incurred in the Beyond years.
The Total Costs for an installation are the sum of the Total One-Time Costs plus the Total
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United States. Department of Defense. COBRA Algorithm Manual, text, August 30, 2005; (https://digital.library.unt.edu/ark:/67531/metadc23414/m1/92/: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.