b. DESP stocks can be stored on land or on ships. When the stocks are stored on ships, the term "Afloat
pre-positioning force" is assigned. The ships become floating DESPs and the stocks on board are held in support
of BPWRR. DESC maintains accountability of APF stocks and they are used as necessary by the Unified
Command to which they are assigned. APF stocks are not solely used to refuel ships. The Military Sealift
Command provides ships and operating support under two categories:
(1) Maritime Pre-Positioning (MPS) - Which handles routine replenishment of stocks.
(2) Pre-Positioning Ships (REPO)- used for contingency operations.
IMP. The IMP is classified SECRET, based on the premise that divulging IMP data would seriously
damage the ability of the United States to wage war or to defend itself. The IMP, related papers, and documents,
will be declassified only at the direction of Office of the Deputy Undersecretary of Defense (Logistics). The IMP
is developed and issued annually by DESC-O in coordination with CINC-JPOs. The IMP states required
inventory levels and gives detailed inventory/storage data for DESPs in support of POS and BPWRS. DESC-O
issues changes to the IMP by message, single pages, or complete document.
a. Maximum Stockage Levels. The sum of POS and BPWRS equals the maximum authorized inventory
level. DESPs cannot exceed the IMP levels. If conditions dictate, the DESC-O may issue a waiver to or direct
the DESPs to exceed the IMP level. DERs must monitor region levels to prevent overstockage on a regional basis
and prevent malpositioning.
b. Inviolate Levels. A DESP inviolate level is 85 percent of the BPWRS plus the unobtainable
inventory in tank bottoms, manifolds, and pipelines. Any consumption of a DESP's inviolate level exceeding 72
hours must be reported to the supposing DERs/DFPs/SCPs/SAPOs/CINC-JPOs/ DESC-O.
a. Join Staff/J4. It sets up pre-positioning objectives for regions and areas worldwide in the form of
geographic days of supply. These objectives consider such factors as wartime tanker sailing times, in theater
distribution times, attrition factors, and safety levels.
b. DESC. The DESC:
(1) Consolidate military service requirements for storage at DESPs and assigns maximum and
minimum levels in the IMP.
(2) Develops and distributes the IMP in coordination with JPOs and military services.
(3) Plans for emergency shipments of BPWRS in CONUS.