DEPARTMENT OF THE NAVY
OFFICE OF THE CHIEF OF NAVAL OPERATIONS
2000 NAVY PENTAGON
WASHINGTON, DC 20350-2000
OPNAVINST 3501.198D
N4L
13 Jan 2022
OPNAV INSTRUCTION 3501.198D
From: Chief of Naval Operations
Subj: REQUIRED OPERATIONAL CAPABILITIES AND PROJECTED OPERATION
ENVIRONMENT FOR THE T-AK, T-AKR, T-AKE AND T-ESD ASSIGNED TO THE
MARITIME PRE-POSITIONING FORCE AND THE AVIATION LOGISTICS
SUPPORT
Ref: (a) OPNAVINST C3501.2L (NOTAL)
(b) OPNAVINST 3501.369A
Encl: (1) Projected Operational Environment for the Ships in the Maritime
Prepositioning Force and the T-AVB
(2) Required Operational Capabilities for the Ships in the Maritime
Prepositioning Force and the T-AVB
(3) Required Operational Capabilities for MPF Ships and T-AVB
1. Purpose. To issue the required operational capabilities (ROC) and projected operational
environment (POE) for the ships assigned to the maritime pre-positioning force (MPF) program
and the aviation logistics support ship (T-AVB). This instruction is a complete revision and
should be reviewed in its entirety.
2. Cancellation. OPNAVINST 3501.198C.
3. Scope and Applicability. Enclosures (1) through (3) define the ROC and POE for the ships
assigned to the MPF and T-AVB per reference (a). Administrative control and life cycle
management of all ships in the MPF are provided by the Director, Ship Management, under the
pre-positioning program. The T-AVB ships are U.S. government-owned, manned by civilian
contract crews under the operational and administrative command of the Commander, Military
Sealift Command (MSC) in their role as the United States Transportation Command
(USTRANSCOM) and the Maritime Administration. The guidelines annotated within
subparagraphs 3a and 3b apply to the format and interpretation of the ROC and POE:
a. This instruction applies generically to all MPF squadron configurations and T-AVB
ships. There is no requirement for specific ROCs and POEs tailored to each configuration.
Where significant capabilities exist in a class of ships, specific ROCs will be annotated as
applying to that class.
